All Calculators Require a JAVA Enabled Browser. More Information

Note:

• Many of the links first open an equations web page. Look for the the "Calculators" link to open the actual calculator application.
• Not all web page actually open to a calculator at this time, however there will be the associated calculator in the near future.
• If you have any engineering calculator suggestions, please use Engineers Edge feedback form --> Feedback

** TIP: To search this webpage, select "ctrl + F" then type in keyword within the pop-up box. **

Structural Deflections and Stress Menu

• Axial Load Capacities for Single Plates Calculator
• Beam Bending Equations / Calculation Supported on Both Ends Uniform Loading
• Beam Bending Equations / Calculation Supported on Both Ends Single Load at Center
• Beam Bending Equations / Calculation Supported on Both Ends Loaded at any Location
• Beam Bending Equations / Calculation Free and Guided on One End, Rigid one End With Uniform Load
• Beam Bending Equations / Calculation Supported on Both Ends With Overhanging Supports of equal Length and Equal Loads
• Beam Bending Equations / Calculation Supported on Both Ends Loaded Two equal Loads
• Beam Bending Equations / Calculation with Ends Overhanging Supports and a Two Equal Loads applied at Symmetrical Locations
• Beam Bending Equations / Calculation with End Overhanging Supports and a Single Load
• Beam Bending Equations / Calculation Cantilevered Beam with One Load Applied at End
• Beam Bending Equations / Calculation Cantilevered Beam with Uniform Load
• Beam Bending Equations / Calculation Supported on One End, Rigid one End With Uniform Load
• Beam Bending Equations / Calculation Cantilevered Beam with Load at Location Between Support and Load
• Beam Bending Equations / Calculation Free and Guided on One End, Rigid one End With Single Load
• Beam Stress & Deflection Equations / Calculation - Both Ends Overhanging and Supported Unsymmetrical with Uniform Load
• Beam Stress Equations / Calculation - Both Ends Overhanging Supports, Load at any Point Between
• Structural Beam Bending Stress & Deflection Equations / Calculation - Fixed at One End, Supported at the Other, Load at Center
• Beam Stress Deflection Equations / Calculation - Fixed at One End, Supported at the Other, Load at any Point
• Beam Stress Deflection Equations / Calculation - Fixed at Both Ends, Load at Center
• Beam Stress Deflection Equations / Calculation - Fixed at Both Ends, Load at any Location
• Beam Stress Deflection Equations / Calculation with Uniform Loading
• Beam Bending Stress Deflection Equations / Continuous Beam, with Two Unequal Spans, Unequal, Uniform Loads
• Beam Stress Deflection Equations / Calculation - Continuous Beam, with Two Equal Spans, Uniform Load
• Beam Stress Defection Simply Supported on Both Ends Under Superimposed Loading Equations
• Deflection, Shear and Stress Equations and calculator for a Beam supported One End Cantilevered with Partial Distributed Load
• Beam Deflection, Shear and Stress Equations and calculator for a Beam supported One End Cantilevered with Tapered Load
• Beam Deflection, Shear and Stress Equations and calculator for a Beam supported One End Cantilevered with Reversed Tapered Load
• Beam Deflection, Shear and Stress Equations and Calculator for a Beam supported One End Cantilevered with Limited Tapered Load
• Beam Deflection, Shear and Stress Equations and Calculator for a Beam supported One End Cantilevered with Reversed Limited Tapered Load
• Beam Supported One End, Pin Opposite End and Partial Distributed Load Deflection, Shear and Stress Equations and Calculator
• Beam supported One End, Pin Opposite End and two Partial Distributed Load Separated.
• Brittle Failure Theories Computing Safety Factors Excel Spreadsheet Calculator
• Equations and Calculator for a Beam supported One End, Pin Opposite End and One Tapered Distributed Load
• Beam Deflection, Shear and Stress Equations and Calculator for a Beam supported One End, Pin Opposite End and Two Tapered Distributed Load
• Flexural Strengthening of Reinforced Concrete Beam with FRP Laminates Spreadsheet Calculator
• Shear and Stress Equations and Calculator for a Beam supported One End, Pin Opposite End and Triangular Distributed Load
• Calculator for a Beam supported One End, Pin Opposite End and Single Moment at End Applied
• Stress Equations and Calculator for a Beam supported One End, Cantilevered at Defined Location and Single Load at End
• Stress Equations and Calculator for a Beam supported One End, One End, Cantilevered at Defined Location and Distributed Load Between Supports
• Stress Equations and Calculator for a Beam supported One End, Cantilevered at Defined Location and Single Load Between Supports
• Stress Equations and Calculator for a Beam Supported One End, Cantilevered at Defined Location and Single Moment Applied at End
• Stress Equations and Calculator for a Beam Supported One End, Cantilevered at Defined Location and Uniform loading Applied
• Stress Deflection Equations and Calculator Beam Supported Uniform loading Applied on Cantilevered End
• Stress Deflection Equations and Calculator Beam Supported Uniform loading Applied
• Stress Deflection and Moment Equations and Calculator Beam Supported Uniform loading Applied
• Stress Deflection Moment Equations and Calculator Beam Supported Partial Uniform loading Applied
• Stress Deflection Moment Equations and Calculator Beam Supported Partial Tapering Load Applied Equation and Calculator
• Stress Deflection Strain Equations and Calculator Beam Supported Tapering Load Applied
• Stress Deflection Strain Moment Equations and Calculator Beam Supported Partial Tapering Load Applied
• Stresses in Three Dimensions Excel Spreadsheet Calculator
• Beam Stress & Deflection Equations / Calculator Free and Guided on One End
• Beam Stress & Deflection Equations / Calculator Moment Applied at Defined Location
• Beam Stress Deflection Equations / Calculator with Partial Uniform Loading
• Beam Stress Deflection Equations / Calculator with Partial Tapering Loading
• Beam Stress Deflection Equations / Calculator with Fixed Ends Tapering Loading
• Beam Stress Deflection Equations / Calculator with Fixed Ends Moment Applied
• Beam Parabolic Deflection Equation Calculator with Variable Shape
• Beam Cubic Parabola Shape Deflection Equation Calculator with Variable Shape Fixed End Single Concentrated Force Applied
• Combined Stress Circular Cantilever Beam in Direct Compression and Bending Equations and Calculator
• Combined Stress Circular Cantilever Beam in Direct Tension and Bending Equations and Calculator
• Combined Rectangular Cantilever Beam in Direct Compression and Bending Equations and Calculator
• Combined Rectangular Cantilever Beam in Direct Tension and Bending Equations and Calculator
• Combined Loading on Circular Beam or Shaft in Direct Compression and Bending Equation and Calculator
• Combined Loading on Circular Beam or Shaft in Direct Tension and Bending Equation and Calculator
• Combined Loading on Rectangular Beam or Shaft in Direct Compression and Bending Equation and Calculator
• Combined Loading on Rectangular Beam or Shaft in Direct Tension and Bending Equation and Calculator
• Combined Loading on Circular Shaft in Direct Compression and Torsion Equation and Calculator
• Combined Loading on Circular Shaft in Direct Tension and Torsion Equation and Calculator
• Combined Loading on Offset Link, Circular Cross Section, in Direct Tension Equation and Calculator
• Combined Loading Offset Link, Circular Cross Section, in Direct Compression Equation and Calculator
• Combined Loading Offset Link, Rectangular Section, in Direct Tension Stress Equation and Calculator
• Combined Loading Offset Link, Rectangular Section, in Direct Compression Stress Equation and Calculator

In-Plane Loading of Elastic Frames Deflection and Reaction Equations and Calculators for

• Concentrated Load on the Horizontal Member Elastic Frame Equations and Calculator
• Distributed Load on the Horizontal Member Elastic Frame Deflections Equations and Calculator
• Frame Deflections with Concentrated Moment Applied on Horizontal Member Equations and Calculator
• Frame Deflections with Concentrated Angular Displacement Applied on Horizontal Member Calculator
• Frame Deflections with Concentrated Lateral Displacement Applied on Horizontal Member Equations and Calculator
• Frame Deflections with Concentrated Load Applied to Vertical Member Equations and Calculator
• Frame Deflections with Distributed Load Applied to Left Vertical Member Equations and Calculator
• Frame Deflections with Concentrated Moment Applied to Left Vertical Member Equations and Calculator
• Frame Deflections with Concentrated Angular Displacement Applied to Left Vertical Member Equations and Calculator
• Frame Deflections with Concentrated Lateral Displacement Applied to Left Vertical Member Equations and Calculator
• Frame Deflections with Concentrated Load Applied to Right Vertical Member Equations and Calculator
• Frame Deflections with Distributed Load Applied to Right Vertical Member Equations and Calculator
• Frame Deflections with Concentrated Moment Applied to Right Vertical Member Equations and Calculator
• Frame Deflections with Concentrated Angular Displacement Applied Right Vertical Member Equations and Calculator
• Frame Deflections with Concentrated Lateral Displacement Applied Right Vertical Member Equations and Calculator
• Frame Deflections with Uniform Temperature Rise Equations and Calculator
• Frame Deflections with Uniform Temperature Differential Between Outside and Inside Equations and Calculator
• Frame Deflections with Concentrated Load on the Horizontal Member Equations and Calculator. Left vertical member guided horizontally, right end pinned.
• Distributed Load Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
• Concentrated Moment on the Horizontal Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
• Concentrated Angular Displacement on the Horizontal Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
• Concentrated Lateral Displacement on the Horizontal Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
• Concentrated load on the Left Vertical Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
• Distributed Load on the Left Vertical Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator
• Concentrated Moment on the Left Vertical Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator
• Concentrated Angular Displacement on Left Vertical Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator
• Concentrated Lateral Displacement on Left Vertical Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
• Concentrated Load on Right Vertical Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
• Stress from Drop Load of Beam Supported on Both Ends and Struck in the Center.
• Stress from Drop Load of Beam Fixed on one End and Struck at the Other End Equations and Calculator.
• Stress from Drop Load of Beam Fixed on Both Ends and Struck at Center Equations and Calculator.

Plate Deflection and Stress Equations and Calculators

• Circular plate, uniform load, edges simply supported equation and calculator
• Circular plate, uniform load, edges clamped equation and calculator
• Circular Plate Concentrated Load Floating Equation and Calculator
• Circular Plate Concentrated Load Edges Simply Supported Equation and Calculator
• Flat Rectangular Plate with All Edges Simply Supported Stress and Deflection with straight boundaries and constant thickness Equation and Calculator Roark's Stress Strain
• Flat Rectangular Plate with All Edges Simply Supported Stress and Deflection with circular Load applied at center Equation and Calculator.
• Flat Rectangular Plate Uniform Loading over Central Rectangular Area Stress Equation and Calculator
• Flat Rectangular Plate Uniformly Increasing Loading Along Length Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas for flat plates with straight boundaries and constant thickness
• Flat Rectangular Plate Uniformly Increasing Loading Along Width Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas for flat plates with straight boundaries and constant thickness
• Flat Rectangular Uniform over entire plate plus uniform tension or compression P lb/linear in applied to short edges Stress and deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas for flat plates with straight boundaries and constant thickness
• Flat Rectangular Uniform over entire plate plus uniform over entire plate plus uniform tension P lb=linear in applied to all edges Stress and deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas for flat plates with straight boundaries and constant thickness
• Flat Rectangular Plate; Three Edges Simply Supported, one Edge (b) Free Stress and Deflection With Uniform Force over Entire Plate Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas for flat plates with straight boundaries and constant thickness
• Flat Rectangular Plate; Three Edges Simply Supported, one Edge (b) Free Stress and Deflection With Uniformly increasing along the a side Equation and Calculator.
• Flat Rectangular Plate; Three Edges Simply Supported, one Edge Fixed Stress and Deflection With Uniformly increasing along the a side Equation and Calculator. Per. Roarks Formulas for Stress and Strain.
• Flat Rectangular Plate; two long edges simply supported, two short edges fixed Uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas
• Flat Rectangular Plate; two long edges fixed, two short edges simply supported Uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas
• Flat Rectangular Plate; one edge fixed, opposite edge free, remaining edges simply supported Uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas
• Flat Rectangular Plate; one edge fixed, opposite edge free, remaining edges simply supported loading 2/3 of plate from fixed edge Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas
• Flat Rectangular Plate; one edge fixed, opposite edge free, remaining edges simply supported loading 1/3 of plate from fixed edge Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas
• Flat Rectangular Plate; one edge fixed, opposite edge free, remaining edges simply supported loading Uniformly decreasing from fixed edge to free edge Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain Formulas
• Flat Rectangular Plate; one edge fixed, opposite edge free, remaining edges simply supported loading Uniformly decreasing from fixed edge to zero at 2/3 b Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate; one edge fixed, opposite edge free, remaining edges simply supported loading Uniformly decreasing from fixed edge to zero at 1/3 b Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate; one edge fixed, opposite edge free, remaining edges simply supported loading distributed line load Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate; all edges fixed. Uniform loading over small concentric circle of radius r_o (note definition of r'_o) Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate; all edges fixed. Uniform Decreasing Loading Parallel to Side b Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate; all edges fixed. uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Simply Supported Loading Over Entire Plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate; Three Edges Simply Supported, one long Edge Fixed Stress and Deflection With Uniform Loading over entire plate Equation and Calculator.
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Simply Supported Uniform Loading over 2/3 of plate from fixed edge Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Simply Supported Uniform Loading over 1/3 of plate from fixed edge Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain for flat plates
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Simply Supported Loading Uniformly decreasing from fixed edge to simply supported edge Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain for flat plates
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Simply Supported Loading Uniformly decreasing from fixed edge to zero at 2/3b Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Simply Supported Loading Uniformly decreasing from fixed edge to zero at 1/3b Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Free Supported Loading Uniformly Over Entire Plate Stress and Reaction Loading Equation and Calculator. Per. Roarks Formulas for Stress and Strain for flat plates
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Free Loading Uniformly decreasing from fixed edge to zero at free edge Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Free Loading Uniformly decreasing from fixed edge to zero at 1/3b Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Free Loading Uniformly decreasing from fixed edge to zero at 2/3b Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Free Loading Uniform over 1/3 of Plate from Fixed Edge Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Two Edges Fixed, Two Edges Free Loading Uniform over Entire Plate Equation and Calculator. Per. Roarks Formulas for Stress and Strain for flat plates with straight boundaries and constant thickness
• Flat Rectangular Plate, Two Edges Fixed, Two Edges Free Load Uniformly Decreasing from z = 0 to z = b Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Two Edges Fixed, Two Edges Free Uniform Loading over Plate from z = 0 to z = (2/3) b Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Two Edges Fixed, Two Edges Free Uniform Loading over Plate from z = 0 to z = (1/3) b Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Two Edges Fixed, Two Edges Free Load Uniformly Decreasing from z = 0 to z = (2/3) b Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Flat Rectangular Plate, Two Edges Fixed, Two Edges Free Load Uniformly Decreasing from z = 0 to z = (1/3) b Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Continuous Plate Supported at Equal Intervals "a" on Circular Supports of Radius r_o Uniform Loading of Entire Plate Stress Equation and Calculator. Per. Roarks Formulas for Stress and Strain for flat plates
• Continuous Plate Supported on an Elastic Foundation of Modulus k (lb/in²/in) Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Continuous Plate Supported on an Elastic Foundation of Modulus k (lb/in²/in) Stress and Deflection Equation and Calculator. Uniform loading over a small circle of radius r_o, adjacent to edge but remote from corner. Per. Roarks Formulas for Stress and Strain
• Continuous Plate Supported on an Elastic Foundation of Modulus k (lb/in²/in) Stress and Deflection Equation and Calculator. Uniform loading over a small circle of radius r_o, adjacent to corner. Per. Roarks Formulas for Stress and Strain
• Parallelogram plate (skew slab) all edges fixed with uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Parallelogram plate (skew slab) all edges simply supported with uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Parallelogram plate (skew slab) shorter edges simply supported, longer edges free with uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Equilateral triangle; all edges simply supported with uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Right-Angle Isosceles Triangle; all edges simply supported with uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Regular polygonal plate; all edges fixed with uniform loading over entire plate Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Rectangular plate, uniform load, simply supported equations and calculator
• Rectangular plate, uniform load, clamped (Empirical) equations and calculator
• Rectangular plate, concentrated load at center, simply supported (empirical) equation and calculator
• Rectangular plate, circular concentrated load at center, clamped edges (empirical) equation and calculator
• Contact Stress Two Sphere's Equation and Calculator
• Contact Stress Two Spheres in Contact Same Material
• Contact Stress Sphere in Contact Flat Surface Equation
• Contact Stress Two Rollers Equation and Calculator
• Contact Stress Sphere on Concave Surface
• Contact Stress Two Rollers Same Material Equation and Calculator
• Contact Stress Roller Contact Flat Plane Equation and Calculator
• Contact Stress Roller Contact Concave Surface Equation and Calculator
• Shear Modulus of Rigidity Chart and Calculator
• Single-Span Beam Deflection for Simple Propped, Fixed or Cantilever Beams. - Include Shear and Moment Diagram.
• Fixed Pin Cantilever Beam Design Calculator
• Flat Plate Deflection & Stress Calculator
• Bolt Shear AISC Stress Calculator
• Bolt Group Shear and Torsion in Fastened Members Excel Spreadsheet Calculator
• Bolt Elongation Equation and Calculator while under Axial Stress
• Bolt Joint Analysis S-N Diagram for Loading Excel Spreadsheet Calculator
• Circular Plate Deflection, Moments and Stress
• Axial Load Capacities Single Plates Calculator
• Equation and Calculator Fixed and Supported Ends
• Ideal Pinned Column Buckling Calculator
• Column Loading and Elastic Stability Formulae and Calculator Case 1a Stepped straight bar under end load P and intermediate load P₂; upper end free, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 1b Stepped straight bar under end load P₁ and intermediate load P₂; both ends pinned.
• Column Loading and Elastic Stability Formulae and Calculator Case 1c Stepped straight bar under end load P1 and intermediate load P2; upper end guided, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 1d Stepped straight bar under end load P1 and intermediate load P2; upper end pinned, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 1e Stepped straight bar under end load P1 and intermediate load P2; both ends fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 2a Stepped straight bar under end load P1 and intermediate load P2; both ends fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 2b Stepped straight bar under tensile end load P1 and intermediate load P2; both ends pinned.
• Column Loading and Elastic Stability Formulae and Calculator Case 2c Stepped straight bar under tensile end load P1 and intermediate load P2; upper end guided, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 2d Stepped straight bar under tensile end load P1 and intermediate load P2; upper end pinned, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 2e. Stepped straight bar under tensile end load P1 and intermediate load P2; both ends fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3a1 Uniform straight bar under end load P and a uniformly distributed load p over a lower portion of the length; several end conditions. Upper end free, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3a2. Uniform straight bar under end load P and a uniformly distributed load p over a lower portion of the length. Upper end pinned, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3a3. Uniform straight bar under end load P and a uniformly distributed load p over a lower portion of the length. Upper end pinned, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3a4. Uniform straight bar under end load P and a uniformly distributed load p over a lower portion of the length. Both ends fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3B1. Uniform straight bar under end load P and a uniformly distributed load p over an upper portion of the length; several end conditions Upper end free, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3B2. Uniform straight bar under end load P and a uniformly distributed load p over an upper portion of the length; several end conditions both ends pinned.
• Column Loading and Elastic Stability Formulae and Calculator Case 3B3. Uniform straight bar under end load P and a uniformly distributed load p over an upper portion of the length; upper end pinned, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3B4. Uniform straight bar under end load P and a uniformly distributed load p over an upper portion of the length; both ends fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3C1. Stepped straight bar under end load P and a distributed load of maximum value p at the bottom linearly decreasing to zero at a distance a from the bottom Upper end free, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3C2. Stepped straight bar under end load P and a distributed load of maximum value p at the bottom linearly decreasing to zero at a distance a from the bottom Both ends pinned.
• Column Loading and Elastic Stability Formulae and Calculator Case 3C3. Stepped straight bar under end load P and a distributed load of maximum value p at the bottom linearly decreasing to zero at a distance a from the bottom Upper end pinned, lower end fixed.
• Column Loading and Elastic Stability Formulae and Calculator Case 3C4. Stepped straight bar under end load P and a distributed load of maximum value p at the bottom linearly decreasing to zero at a distance a from the bottom Both ends fixed.
• Impact and Sudden Loading Approximate Formulas Equations
• Impact Force of a Blow Formulae and Calculator: Impact force of a blow: A body that weighs W pounds and falls S feet from an initial position of rest is capable of doing WS foot-pounds of work.
• Cylinder Stress and Deflection with Applied Torsion
• Stress Concentration Cylinder feature with Axial Loading
• Tapered Snap Fit Beam Bending Equation and Calculator
• Thin Wall Pressure Vessel Hoop Stress
• Thin Wall Pressure Vessel Longitudinal Stress
• Torsional Deflection of Cylinder
• Torsional Deformation and Stress Solid Circular Section Equations and Calculator
• Torsional Deformation and Stress Solid Elliptical Section Equations and Calculator
• Solid Square Section Torsional Deformation and Stress Calculator and Equations
• Torsional Deformation and Stress Solid Triangular Section Equations and Calculator
• Torsional Deformation and Stress Solid Isosceles Triangle Section Equations and Calculator
• Torsional Deflection of Solid Cylinder
• Torsional Deflection of Hollow Cylinder
• Torsional Deformation and Stress Solid Circular Segmental Section Equations and Calculator
• Torsional Stress Calculator and Equations
• Torsional Deformation and Stress Circular Segmental Section Equations and Calculator
• Torsional Deformation and Stress Circular shaft with opposite sides flattened Equations and Calculator.
• Torsional Deformation and Stress Concentric Circular Section Equations and Calculator. Torsional deflection and stress of a pipe.
• Torsional Deformation and Stress Eccentric Hollow Circular Section Equations and Calculator
• Torsional Deformation and Stress Hollow Elliptical Section Equations and Calculator
• Torsional Deformation and Stress Elliptical Hollow thin-walled section of uniform thickness Equations and Calculator
• Torsion Deformation and Stress Hollow Rectangle Thin Wall Tube Section Equations and Calculator
• Torsional Deformation and Stress Thin Circular Open Tube of Uniform Thickness Section Equations and Calculator
• Torsional Deformation and Stress Any Thin Open Tube of Uniform Thickness Calculator
• Torsional Stiffness Cylindrical Solid Shaft Equations and Calculator
• Torsional Stiffness Hollow Shaft Equations and Calculator
• Torsional Stiffness of Rectangular Plate Equations and Calculator
• Torsional Stiffness of Any Solid Section Equations and Calculator
• Torsion Applied Deformation and Stress of any elongated section with axis of symmetry OX; Equations and Calculator
• Torque Applied Deformation and Stress of a Trapezoid Equations and Calculator
• Torque Applied Deformation and Stress of a T-Section Equations and Calculator
• Torque Applied Deformation and Stress of a L-Section Equations and Calculator
• Torque Applied Deformation and Stress of a I Beam Section Equations and Calculator
• Torque Applied Deformation and Stress of a C Beam Section Calculator
• Torque Applied Deformation and Stress of a Shaft with Keyway Equations and Calculator
• Torque Applied Deformation and Stress of a Shaft with Two Keyways Equations and Calculator
• Torque Applied Deformation and Stress of a Shaft with Four Keyways Equations and Calculator
• Torque Applied Deformation and Stress of a Shaft with One Spline Equations and Calculator
• Torque Applied Deformation and Stress of a Shaft with Two Splines Equations and Calculator
• Torque Applied Deformation and Stress of a Shaft with Four Splines Equations and Calculator
• Torque Applied Deformation and Stress of a Pinned Shaft Equations and Calculator
• Torque Applied Deformation and Stress of a Two Grooved Pinned Shaft Equations and Calculator
• Torque Applied Deformation and Stress of a Four Grooved Pinned Shaft Equations and Calculator
• Torsional Deformation and Stress of a Cross Shaft Equations and Calculator
• Shear Stress in Shafts Calculator
• Principal and Von-Mises Stress Equations and Calculator
• Mohr's Circle Equation and Calculator
• Static's Force Analysis for Cylinder Supported by Two Rollers Equation and Calculator
• Engineering 2D and 3D Static's Basics Equations and Calculators
• Two Block Shear Spring Design Equations and Calculator
• Cylindrical Shear Spring with axial load applied design equations and calculator
• Cylindrical Torsion spring with torque applied design equations and calculator
• Flat spring cantilevered design equations and calculator
• Flat spring cantilevered design triangular geometry equations and calculator
• Tapered Flat spring cantilevered design equations and calculator

Formulas for Circular Rings, Moment, Hoop Load, Radial Shear and Deformation

• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator. Loading W applied at 180° through center of circular section
• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator.
  Loading W applied at θ relative to x angle. Per. Roarks Formulas for Stress and Strain Formulas for Circular Rings Section 9, Reference, loading, and load terms #2.
  Formulas for moments, loads, and deformations and some selected numerical values.
• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator #3.
  Loading moment applied M_o at θ relative to x angle. Per. Roarks Formulas for Stress and Strain Formulas for Circular Rings Section 9, Reference, loading, and load terms #3.
  Formulas for moments, loads, and deformations and some selected numerical values.
• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator #4. Loading W at θ relative to x angle. Per. Roarks Formulas for Stress and Strain Formulas for Circular Rings Section 9, Reference, loading, and load terms #4.
• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator #5.
  Loading W at θ relative to A-C Per. Roarks Formulas for Stress and Strain Formulas for Circular Rings Section 9, Reference, loading, and load terms #5.
• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator #6.
  Loading W at θ relative to D-B. Per. Roarks Formulas for Stress and Strain Formulas for Circular Rings Section 9, Reference, loading, and load terms #6. Formulas for moments, loads, and deformations and some selected numerical values.
• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator #7. Ring under any number of equal radial forces equally spaced. Per. Roarks Formulas for Stress and Strain Formulas for Circular Rings Section 9, Reference, loading, and load terms #7.
  Formulas for moments, loads, and deformations and some selected numerical values.
• Circular Ring Moment, Hoop Load, and Radial Shear Equations and Calculator #8. Per. Roarks Formulas for Stress and Strain Formulas for Circular Rings Section 9, Reference, loading, and load terms #8. Formulas for moments, loads, and deformations and some selected numerical values.

Section Properties Selected Shapes

• Steel W & S Flange Beam and Column Analysis / Code Check Calculator
• Section Modulus - Plastic Section Modulus (PNA)
• Section Properties Square at Center
• Section Properties Square Rotated 45 Deg at Center
• Section Properties Square at Edge
• Section Properties Square Tube at Center
• Section Properties Square Tube Rotated 45 Deg @ Center
• Section Properties Rectangle at Center
• Section Properties Rectangle @ Edge
• Section Properties Rectangle Through Corners
• Engineering Section Properties: Rectangle @ Specified Angle
• Parabolic Spandrel Section Properties Equation and Calculator
• Section Properties Rectangle Tube at Center
• Section Properties Round at Center
• Section Properties Tube/Pipe at Center
• Section Properties Half Round
• Section Properties Half Round Tube
• Section Properties Hexagon at Center
• Section Properties Hexagon Thru Corners
• Section Properties of Parallelogram Equation and Calculator:
• Section Properties Trapezoid
• Section Properties Octagon
• Section Properties Triangle
• Section Properties Triangle At Edge
• Section Properties Half Triangle
• Section Area Moment of Inertia Properties Oblique Triangle
• General Equation and Calculator Mass Moment of Inertia
• Hollow Cylinder Mass Moment of Inertia
• Rectangular Plane Mass Moment of Inertia Calculator
• Rectangular Plate Mass Moment of Inertia Calculator on Edge
• Solid Shaft Cylinder Equation and Calculator Mass Moment of Inertia
• Solid Sphere Cylinder Equation and Calculator Mass Moment of Inertia
• Thin Sphere Cylinder Equation and Calculator
• Thin Wall Shaft Mass Moment of Inertia
• Cored Laminate Composite Stiffness Calculator

Polar Moments of Inertia Equations and Calculators

• Polar Moment of Inertia, Polar Section Modulus Common Shapes
• Polar Mass Moment of Inertia About Axis A-A, Axis B-B and Axis C-C.
• Flywheel Effect Polar Moment of Inertia
• Weld Fillet polar moment of Inertia

Vibration Design and Engineering

• Vibration Resonant Frequency of a Flat Plate / Electronic Circuit Card Equation and Calculator
• Angular Natural Frequency Undamped Two Masses Spring System Equations and Calculator
• Angular Natural Frequency Undamped Two Mass Two Springs System Equations and Calculator
• Angular Natural Frequency Undamped Mass Spring System Equations and Calculator
• Angular Natural Frequency Undamped Two Opposed Springs System Equations and Calculator
• Free Mass Undamped Vibration Equations and Calculator
• Shock and Vibration Response Equations
• Miles Equation - Vibration
• Deflection of Uniform Bar with Free Ends Mechanical Vibration
• Angular Natural Frequency of Shaft Equations and Calculator
• Natural Frequency Undamped Two Opposed Springs One Mass Equation and Calculator
• Natural Frequency Undamped Two Mass Two Springs Equations and Calculator
• Natural Frequency Undamped Cantilevered Mass Equations and Calculator
• Natural Frequency Undamped Two Masses Spring System Equations and Calculator
• Undamped Mass Spring Natural Frequency Equations and Calculator
• Shock and Vibration Response Equations
• Free Mass Undamped Vibration Equations and Calculator
• Resonant Frequency Flat Plate Electronic Circuit Equations and Calculator
• Vibration Severity Chart
• Angular Natural Frequency of Shaft and Two Masses Equations and Calculator
• Angular Natural Frequency of Shaft and One Mass Equations and Calculator
• Angular Natural Frequency of Geared System with Masses Gears Equations and Calculator
• Plastic Spur Gearing Rated Design Hp, Operating Stress Equations and Calculator
• Angular Natural Frequency Two Masses Axial Equations and Calculator
• Angular Natural Frequency Three Masses Axial Equations and Calculator
• Angular Natural Frequency Beam Fixed-Free End Load Applied Equations and Calculator
• Beam Hinged Ends Center Load Applied Angular Natural Frequency Equations and Calculator
• Beam Hinged Ends Off-Center Load Applied Angular Natural Frequency Equations and Calculator
• Beam Fixed Ends Center Load Applied Angular Natural Frequency Equations and Calculator
• Beam Fixed Ends Off-Center Load Applied Angular Natural Frequency Equations and Calculator
• Massive Spring with Concentrated Mass Loads Angular Natural Frequency Equations and Calculator
• Beam Spring Fixed and Free End with Concentrated Mass Loads Angular Natural Frequency Equations and Calculator
• Beam Spring Hinged Ends with Concentrated Mass Loads Angular Natural Frequency Equations and Calculator
• Beam Spring Fixed Ends with Concentrated Mass Loads Angular Natural Frequency Equations and Calculator
• Beam Fixed End and Cantilevered Angular Natural Frequency Equations and Calculator
• Beam Simple Hinged-Hinged Ends Angular Natural Frequency Equations and Calculator
• Beam with Fixed-Fixed Ends Angular Natural Frequency Equations and Calculator
• Beam with Ends Free Angular Natural Frequency Equations and Calculator
• Beam with one End Free and Other Fixed Angular Natural Frequency Equations and Calculator
• Beam with one End Free and Other Hinged Angular Natural Frequency Equations and Calculator
• Thin Flat Plates of Uniform Thickness Natural Frequency Equations and Calculator
• Massless Circular Plate With Concentrated Center Mass Clamped Edges Natural Frequency Equations and Calculator
• Massless Circular Plate With Concentrated Center Mass Simply Supported Edges Natural Frequency Equations and Calculator
• Compound Pendulum Angular Natural Frequency Equations and Calculator
• Sphere in Cylindrical Track Angular Natural Frequency Equations and Calculator
• Pneumatic System Angular Natural Frequency Equations and Calculator
• U-Tube With Liquid Angular Natural Frequency Equations and Calculator
• Flat Plate on Rotating Drums Angular Natural Frequency Equations and Calculator
• Tanks With Connecting Conduit Angular Natural Frequency Equations and Calculator
• Cylinder in Cylindrical Track Angular Natural Frequency Equations and Calculator

Machine Design and Engineering

• Angular Radial Contact Ball Bearings Static Load Rating Calculator
• Ball Screw Design Equations and Selection Criteria Equations and Calculator
• Bearing Fatigue Life Calculator #1
• Bearing Fatigue Life Calculator #2
• Braking Torque Equation and Calculator
• Band Brake Configuration #1 Force Equation and Calculator
• Belleville Spring Washer Equation and Calculator
• Simple Band Brake Configuration #2 Force Equation and Calculator
• Differential Band Brake Configuration #1 Force Equation and Calculator
• Differential Band Brake Configuration #2 Force Equation and Calculator
• Band Brake Design Equations
• Differential Band Brake Design Equation
• Centrifugal Force Capacity Retaining Snap Rings
• Centrifugal Force Equations and Calculator
• Centripetal Acceleration Equations and Calculator
• Critical Speeds and Deflection of Rotating Shafts Equation and Calculator
• Crossed Belt Friction Belt Drive Calculator
• V-Belt Classical Speed to Horsepower Ratings Formulas and Calculator for Cross Sections
• Collar Bearing Pivot Friction Equation and Calculator
• Conical Pivot Friction Equation and Calculator
• Cone Cylinder Stress and Deflection by Uniform rotation, ω rad/s, about central axis Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Gasket Compression Fastener Spacing Design Equation Calculator
• Engineering Design Manufacturing Costs Calculator
• Inclined Wedge Force and Friction Equation and Calculator
• Inclined Wedge Force and Friction Equation and Calculator #2
• Journal Bearing Hydrodynamic Lubrication Analysis Equation and Calculator
• Fatigue and Machine Design Excel Spreadsheet Calculator
• Flat Thrust Plate Bearing Design Equation and Calculator Fluid thrust bearings contain a number of sector-shaped pads, arranged in a circle around the shaft
• Tilting Pad Thrust Plate Bearing Design Equation and Calculator
• Tapered Land Thrust Plate Bearing Design Equation and Calculator
• Flywheel Mass, Size Design Equations and Calculator
• Forces to Pull Weight up Inclined Plane with and without Friction Equation and Calculator #3
• Forces to Pull Weight up Inclined Plane with and without Friction Equation and Calculator #4
• Shaft and Journal Pivot Friction Equation and Calculator
• Shaft Flat Pivot Friction Equation and Calculator
• Truncated Cone Friction Equation and Calculator
• Disk and Drum Brake Equations and Calculator
• Flat Belt Length Distance Calculator
• Gear Motor and Transmission Inertia Estimator Calculator
• Gear Tooth Strength Calculator
• Gear Ratio Equations and Calculators (24 cases)
• Spur Gear Design Calculator Tool
• Gear Design for Known Center Distance and Ratio Calculator and Equation
• Ratchet Type Gear Design Formulas and Calculator
• Involute Spline and Serration Universal Design Calculator
• Helical Gear and Pinion Calculator and Equations
• Helical Gear and Pinion Calculator and Equations
• Helix Gearing with Shafts at Any Angle, Center Distance Approximate Design Equations and Calculator
• Power Screw Buckling and Deflection Equations and Calculator
• Magnetic Lifting Force Equation and Calculator
• Power Screw Design Equations and Calculator
• Press Fit Engineering and Design Calculator
• Rolling Resistance Equation and Calculator
• Rough Estimating the Cost of Machined Parts Equations and Calculator
• Scissor Lift Jack Force Bottom Load Calculator
• Scissor Lift Jack Force Center Load Calculator
• Sliding Contact Bearing Efficiency on Supported Pulley
• Sling Lifting Capacity and Loading Calculator
• Solid Rigid Shaft to Shaft Couplings Design Equations and Calculator
• Step Thrust Plate Bearing Design Equation and Calculator
• Stresses in Rotating Disks (Annular Rings) of Constant Thickness Equation and Calculator
• Tire Traction Breakaway Equation and Calculator
• Tire Traction Force Equation and Calculator
• Toggle Clamp Equal Length Arms Equations and Calculator
• Open Vehicle Forces Calculator
• Three Gears or Pulleys Force Calculations and Equations
• Large and Small Diameter Lifting Pulley / Drum Equation and Calculator
• Air Resistance Force to Vehicle Forward Motion Equation and Calculator
• Power Take-Off (PTO) on Transfer Case Rotational Speed Per Distance Traveled (meter) Equations and Calculators
• Rolling Resistance Force of Tire and Contacting Surface.
• Transmission Gear Ratio Equation and Calculator
• Vehicle Forces For Driving Up Slope Calculator
• Vehicle Speed on basis of engine rpm, tire size and gear ratios equations and calculator
• Vehicle Hill Climbing Gradability taking into Account Road Tire Adhesion Equation and Calculator
• Vehicle Turning Circle Design and Engineering Equations and Calculators
• Distance traveled on uphill or downhill gradients Equation and Calculator
• Rigid Drawbar Trailers / Central Axle Trailers Loading Equations and Calculators
• Fifth Wheel Coupling Loading Equations and Calculators
• Weight and Balance Equation and Calculator Trailer
• Worm and Wormgear Design Equations and Calculator
• Trailer Hitch Ball Coupler Size Equations and Calculators
• Adding Forces by the Parallelogram Resultant of Two Forces Equation and Calculator
• Vector Forces by the Parallelogram Resultant of Two Forces Equation and Calculator
• Vector Finding Two Concurrent Components of a Single Force Equation and Calculator, Case 1
• Finding Two Vector Concurrent Components of a Single Force Equation and Calculator, Case 2

Gear and Gear Train Systems Engineering and Design

• AGMA Worm and Spur Gear Design Equations and Calculators Worm gear sets are generally rated by their capacity to handle a particular level of input power, output power, or allowable torque at a particular speed for the input or output shaft.
• AGMA Wormgear Equations For Rating Factors Calculators Values for the ratio correction factor, the velocity factor, and materials factors can be found from tables provided in the ANSI/AGMA 6034-B92 standard.
• AGMA Spur Gear Bending Stress Equation and Spread Sheet (1999) The AGMA* spur gear bending method can be viewed as a detailed refinement of the Lewis method.
• Automotive Transmission Gear Ratio Equation and Calculator Resultant vehicle speed at knownengine rpm
• Ball Screw Design Equations and Selection Criteria A ball screw transforms rotational motion into transitional motion. As a result, the shaft is subject to loads:
• Centrifugal Force Calculations of Rotating Body When gear rotates about any axis other than one at its center of mass, it exerts an outward radial force called centrifugal force.
• Flywheel Mass, Size Design Equations and Calculator The torque-angle relationship for an engine or machine depends on the the amount of work required.
• Gear Pitch Conversions The following charts convert gear pitch dimensional data to the following: Diametral Pitch Module Circular Pitch
• Gear Equations, Calculators and Formula Spur Gear design formula for geometry, pitch, tooth clearance and critical functional data.
• Gears Spur and Helical Gears Calculation of Load Capacity
• Gear Tooth Strength Calculation and Equation Design guidelines for determining or estimating your required gear tooth strength.
• Gear Motor Transmission Inertia Drive Calculator and equations
• Hertz Gear Tooth Contact Stress Equation and Calculator The transfer of power between gears takes place at the contact between the acting teeth. The stresses at the contact point can be computed by means of the theory of Hertz.
• Helical Plastic Gears Rated Design Hp, Operating Stress Equations and Calculator
• Helical Gear and Pinion Calculator and Equations This calculator will determine the following design variables for a gear and pinion.
• Plastic Straight Bevel Gears Rated Design Hp, Operating Stress Equations and Calculator
• Helical Gear and Pinion Calculator and Equations This calculator will determine the following design variables for a gear and pinion.
  Helical Plastic Gears Rated Design Hp, Operating Stress Equations and Calculator
• Helical Gears Shafts Parallel, Center Distance Exact Design Equations and Calculator
• Helical Gears Shafts Parallel, Center Distance Approximate Design Equations and Calculator
• Helical Gears Shafts at Right Angles Design Equations and Calculator
• Involute Spline per ANSI B92.1 Equations These splines or multiple keys are similar in form to internal and external involute gears.
• Involute Spline and Serration Universal Design Calculator Involute Spline and Serration Design Calculator for the following engineering standards:
• Involute Gear Design Equations and Calculator Equations and engineering design calculator to determine critical design dimensions and features for an involute gear
• Lewis Factor Equation Lewis factor Equation is derived by treating the tooth as a simple cantilever and with tooth contact occurring at the tip as shown above.
  
• Phenolic Laminated Gears Stress Design Formulas and Calculator
• Keyway Stresses for Non-metallic (phenolic laminated materials ) Gears Formulas and Calculator
• Power Screw Design Equations and Calculator
• Gear Ratio Equations and Calculators of Planetary or Epicyclic Gear Assemblies Gear Ratio Equations and Calculators
• Screw Gear Axial Force Calculation Axial thrust or load applied per the applied on a screw (worm gear) thread calculate the axial thrust of a nut.
• Sleeve Shaft Coupling Design Equations and Calculator and Equations
• Spline Engineering Design Formula ISO 5480standard applies to splined connections with involute splines based on reference diameters for connecting hubs and shafts..
• Spur Gear Design Calculator Tool Equation and calculator to determine spur gear design details
• Spur Gears Force Analysis Equation and Calculator
• Synchronous Timing Belt Torque Rating Equation and Calculator per. ANSI RMA IP-24 for small pitch MXL section belts
• Synchronous Timing Belt Horsepower Rating Equation and Calculator per. ANSI RMA IP-24
• Three Gears Ratios, Force Equations and Calculator
• Gear Design for Known Center Distance and Ratio Calculator and Equation
• Worm and Wormgear Design Equations and Calculator
• Wormgear Sizing Equations and Calculator

Heat Transfer Engineering

• Convective Heat Transfer Convection Equation and Calculator
• Vertical Parallel Plates Channel Natural Convection Equation and Calculator
• Round Duct Heat Transfer Coefficient and Wall Temperature Equation and Calculator
• Compression Tension Stress Linear Thermal Expansion Equation and Calculator
• Heat Loss Through Enclosure Walls Equations and Calculations
• Heat Loss from a Pipe
• Heat Loss through a Insulated Pipe Equation and Calculator
• Convection of Known Surface Area Calculator
• Vertical Plate Natural Convection Equation and Calculator
• Heat Sink Convection with Fins Calculator
• Isothermal Square Rod Forced Air Convection Equation and Calculator
• Isothermal Circular Rod Forced Air Convection Equation and Calculator
• Forced Convection Heat Transfer Printed Circuit board with Components Equation
• Forced Convection Entry Region Circular Pipe / Tube Equation and Calculator
• Natural Convection of a Horizontal Concentric Cylinders Equation and Calculator
• Flat Plate heat transfer coefficient and heat convected equation and calculator
• Natural Convection of a Horizontal Cylinder Equation and Calculator
• Selecting a Heat Sink for a Transistor Equation and Calculator
• Heat Conduction through a Wall Equation and Calculator
• Counter & Parallel Flow Heat Exchanger Calculator
• Heat Loss from a Ducts Equations and Calculator
• Heat Radiation of a Surface Calculator
• Heat Loss Through Enclosure Walls Equations and Calculator
• Heat Loss Through a Wall Equation and Calculator
• Heat Loss From an Insulated Electric Wire Equation and Calculator
• HVAC Heating, Ventilation and Air Conditioning Load Calculator - Membership required to download
• HVAC Air Handling Unit Design Excel Calculator
• Maximum Power Dissipation of a Transistor Equation and Calculator
• Linear Thermal Expansion Equation and Calculator
• Heat Loss through Aluminum Framed Window Equations and Calculator
• Heat Loss through a Single-Pane Window Equation and Calculator
• Heat Loss through a Double-Pane Window Equation and Calculator
• Isothermal cylinder of length L buried in a semi-infinite medium calculator
• Conductive Heat Transfer Parallel Cylinders Equation and Calculator
• Conductive Heat Transfer Cylinder of Length Equation and Calculator
• Conductive Heat Transfer Square Solid Equation and Calculator
• Conductive Heat Transfer Eccentric Cylinder Equation and Calculator
• Conductive Heat Transfer Large Plane Equation and Calculator
• Conductive Heat Transfer of a Cylindrical Pipe or Layer Equation and Calculator
• Conductive Heat Transfer of a Spherical Layer Equation and Calculator
• Conductive Heat Transfer of a Disk buried parallel to the surface
• Conductive Heat Transfer of the edge of two adjoining walls of equal thickness
• Conductive Heat Transfer Corner of three walls equal thickness equation and calculator
• Conductive Heat Transfer Isothermal sphere buried medium equation and calculator
• Conductive Heat Transfer of a Isothermal sphere buried in a semi-infinite medium at T₂ whose surface is insulated
• Radiant Heat Exchange Parallel Flat Black Plates of Equal Size equation and calculator. 
• Radiant heat exchange for two parallel flat black plates of different sizes equation and calculator.
• Radiant heat exchange for two parallel disks same size equations and calculator
• Radiant heat exchange for two perpendicular surfaces same size equation and calculator
• Thermal Conductivity Conversions Calculator

Electrical Electronics Design Calculators

• 555 IC Timer Monostable and Astable Design Calculator
• Arc Flash Calculator per. NFPA 70E Calculator Excel Spreadsheet
• NCP1611 Generator Frequency Calculator Excel Spreadsheet
• NCP108x, Flyback CCM, Design Calculator Excel Spreadsheet
• Bandwidth Limiting Calculator Excel Spread Sheet
• Capacitance Discharge Calculator
• CMOS Schmidt Trigger Oscillator Calculator Excel Spreadsheet
• Decibel Tables Calculator Excel Spreadsheet
• Equally Tempered Scale Frequencies Calculator Excel Spread Sheet
• Inductance of Coil Calculator
• Inverting Op-Amp Gain Table Calculator Excel Spread Sheet
• Linear Circuit Source Calculator Excel Spreadsheet
• Ohms Law Equation and Calculator
• Op-Amp Gain Design Equation and Calculator
• Potentiometer Equation and Calculator
• Resistors in Parallel Equation and Calculator
• Multiple Feedback Band Pass Filter Calculator Excel Spread Sheet
• NE566 Function Generator Frequency Calculator Excel Spread Sheet
• NE570 VCA Output Biasing Calculator Excel Spreadsheet
• Schmitt Trigger Equations and Calculator
• Series & Parallel LED Design Calculator
• Wheatstone Bridge Analysis and Calculator
• Wire Voltage Drop Calculator
• Voltage Divider for 5% Resistors Calculator Excel Spreadsheet
• Voltage Summing of Three Resistors Equation and Calculator
• XR-2206 Function Generator Frequency Calculator Excel Spreadsheet
• Zener Diode, Power Transistor on Heat Sink Calculator
• Zener Diode and Resistor Voltage Regulator Design Calculator

IEEE 1584-2018 Equations and Calculators

• Bolt Circle Coordinate Plot & Calculator
• Brinell Hardness Test Equations, Calculators and Review The Brinell hardness test uses a hardened steel ball indenter that is pushed into the material under a specified force.
• Machining Feeds and Speeds Calculator
• Force for Press Brake to Bend or Form Sheet Metal Calculator
• Vickers Hardness Testing Formulas, Calculator and Review

Simple Mechanical Levers Calculators

• Lever Case #1 Force Unknown
• Lever Case #2 Distance Unknown
• Lever Case #3 Force Unknown
• Lever Case #4 Distance Unknown
• Simple lever with weight between fulcrum and lifting force equations and calculators.
• Simple lever with multiple weights outside fulcrum equations and calculators.

Spring Design

• Compression Spring
• Compression Spring "k" Constant
• Compression Spring Assembly Operating Life and Reliability Equations and Calculator
• Bending Applied Spring Stiffness Constant Equations and Calculator
• Extension Spring
• Extension Spring "k"
• Torsion Spring Constant Calculator
• Flat spring supported on both ends design equations and calculator
• Parallel Springs Stiffness Constant Equations and Calculator
• Series Mounted Springs Stiffness Constant Equations and Calculator
• Series and Parallel Mounted Springs Stiffness Constant Equations and Calculator
• Axial Tension or Compression Springs Stiffness Constant Equations and Calculator
• Torsion Spring Calculator
• Torsion Applied Spring Stiffness Constant Equations and Calculator

Friction Equations and Analysis

• Shaft and Journal Pivot Friction Equation and Calculator
• Conical Pivot Friction Equation and Calculator
• Shaft Flat Pivot Friction Equation and Calculator
• Collar Bearing Pivot Friction Equation and Calculator
• Truncated Cone Friction Equation and Calculator

Civil Engineering

• Assembly Tolerance Analysis Calculator
• Concentricity Calculator ASME Y14.5-2009
• Gage Tolerance Calculator ASME B89.1.5 Pin and Ring Gauges
• Maximum Material Size MMC vs Feature Size Tolerance Chart Tool Calculator
• Hole Feature Maximum Material Condition MMC vs Feature Size Tolerance Chart Calculator
• Shaft Diameter Maximum Material Condition MMC vs Feature Size Tolerance Chart Calculator
• Tolerance Calculator Floating Fastener Condition
• Tolerance Calculator Fixed Fastener Condition
• Tolerance Calculator Projected Tolerance Zone
• Tolerance Calculator 2 Mating Features @ MMC
• Tolerance Calculator 3 Mating Features @MMC
• Tolerance Calculator - True Position
• Tolerance Calculator - Spherical True Position
• Hole / Feature Pattern Plot
• Standard Deviation Equation and Calculator
• Measuring Large Bolt Circle Equations and Review
• Measuring Large Bolt Circle Even Number of Holes Calculator
• Measuring Large Bolt Circle Even Number of Holes Calculator #2
• Measuring Large Bolt Circle Odd Number of Holes Calculator #3
• Bolt Circle Coordinate Plot & Calculator
• Table of Hole Bore Tolerances per. ISO 286 Calculator
• Table of Shaft Tolerances per. ISO 286 Calculator
• Sample Size Calculator for Prevalence Studies

Motion Control Design

• Electric Motor Time to Start Calculator
• Electric Motor Running Torque Calculator
• Design of Square Key and Keyway Equations and Calculator
• Motor Accelerating Torque Calculator
• Motor Solid Cylinder Force and Torque Calculator
• Motor Hollow Cylinder Torque, Force Calculator
• Motor Driving Conveyor Torque, Force Calculator
• Motor Driving Speed Reducer (Gear, Belt, or Chain) Torque, Force Calculator
• Efficiency Calculation of Sliding Contact Bearing Supported Pulley
• Toothed Pulley Center Distance Calculator
• Sprocket Center Distance for a Roller Chain of known Length Equation and Calculator

Pressure Vessel & Cylindrical Shape StructureDesign and Engineering Equations and Calculators

• Cylindrical Pressure Vessel Uniform Axial Load Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Cylindrical Pressure Vessel Uniform Radial Load Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Cylindrical Pressure Vessel Uniform Internal or External Pressure, Ends Capped Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Cylinder Linearly Varying Radial Pressure Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Cylinder Stress and Deflection by Own Weight Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Cylinder Stress and Deflection Uniform rotation, ω rad/sec about central axis Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Cone Cylinder Stress and Deflection Filled to Depth with Liquid Tangential Edge Support Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels
• Cone Cylinder Stress and Deflection due to own weight at tangential top edge support Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Cone Cylinder Stress and Deflection by Tangential loading only; resultant load = P. Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Truncated Cone Cylinder Stress and Deflection by Uniform loading on the horizontal projected area; tangential top edge support. Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Spherical Cylinder Stress and Deflection by Uniform internal or external pressure, q force/unit area; tangential edge support Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Spherical Cylinder Stress and Deflection Filled to depth d with liquid of density d force/unit volume; tangential edge support Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Spherical Cylinder Stress and Deflection Own weight, δ force/unit volume; tangential top edge support Equation and Calculator. Per. Roarks Formulas for Stress and Strain
• Spherical Cylinder Stress and Deflection Tangential loading only; resultant load = P Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses
• Spherical Cylinder Stress and Deflection Uniform loading, w force/unit area; on the horizontal projected area; tangential top edge support Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Any smooth figure of revolution if R₂ is less than infinity Uniform internal or external pressure, q force/unit area; tangential edge support Stress and Deflection Equation and Calculator. Per. Roarks Formulas for Stress and Strain for membrane stresses and deformations in thin-walled pressure vessels.
• Any smooth figure of revolution if R₂ is less than infinity Stress and Deflection Equation and Calculator. Filled to depth d with liquid of density δ force / unit volume; tangential edge support. W = weight of liquid contained to a depth y.
• Any smooth figure of revolution if R₂ is less than infinity Stress and Deflection Equation and Calculator. Own weight, δ force/unit volume; tangential top edge support. W = weight of vessel below the level y.
• Any smooth figure of revolution if R₂ is less than infinity Stress and Deflection Equation and Calculator. Tangential Loading Only, resultant load = P, Per. Roarks Formulas for Stress and Strain
• Any smooth figure of revolution if R₂ is less than infinity Stress and Deflection Equation and Calculator. Uniform loading, w force/unit area, on the horizontal projected area; tangential top edge support Per. Roarks Formulas for Stress and Strain
• Boiler Tubes Thickness Pressure Equation and Calculator
• Piping, Drums, and Headers Pressure and Wall Thickness Equations and Calculator
• Pressure Vessel Cone Geometry Design Calculator
• Pressure Vessel Nozzle Design Tool Calculator
• Dished Heads Equations and Calculator
• Dished Hemispherical, Elliptical Head Formulae Equations and Calculator ASME Pressure Vessel Section I
• Full-Hemispherical Head Calculator ASME Pressure Vessel Section I
• Pressure Vessel Torispherical Head Wall and Pressure Calculator
• Pressure Vessel Flanged Dish Head Design Tool Calculator
• Pressure Vessel Elliptical Head Design
• Thickness of Circumferential Shells Under Internal Pressure
• Thickness of Longitudinal Stressed Shells Under Internal Pressure
• Longitudinal Stress (Circumferential Joints)
• Thickness of Ellipsoidal Head Under Internal Pressure
• Thin Cylindrical Shells: Equations and Calculator ASME Pressure Vessel Code
• Thick Cylindrical Shells Equations and Calculator ASME SECTION VIII
• Buckling of Cylinder Plate Equations and Calculation
• Pipe Shell Design Calculator Pressure Vessel
• Reinforcement Pressure Vessel Wall Thickness Plate Equations and Calculator ASME Pressure Vessel Section VIII
• Propane Tank Dimensional and Volume Data Calculator
• Standard Size Steel Pipe Weights Calculator
• Extra Strong (XS) Size Steel Pipe Weights Calculator
• Double Extra Strong(XXS) Size Steel Pipe Weights Calculator
• Pressure Piping Minimum Wall Thickness Equations and Calculator ASME I and ASME-ANSI B31
• Floating Head Exchanger Design Spreadsheet Calculator Pressure Vessel AES Type
• Storage Tank Design Spreadsheet Calculator per. API 650
• Tube Sheet Design Spreadsheet Calculator per. API 650
• Pressure vessel Flange Check Design Spreadsheet Calculator per. ASME Section VIII Div. 1 & TEMA 9th Edition
• Cylindrical Shell Internal and External Pressure Vessel Spreadsheet Calculator
• Pressure Vessel Skirt Support for Vertical Column Design Spreadsheet Calculator
• Lifting Lug Design Spreadsheet Calculator
• Collar Bolt Flange Pressure Vessel Spreadsheet Calculator

Fluids

• Aerodynamic Drag Equation and Calculator
• Air Flow Drag Coefficients, Equation and Calculators
• Air Density and Specific Weight Equations and Calculator
• Convergent Nozzle Flow Velocity and Area Equation and Calculator
• Convergent-Divergent Nozzle Flow Velocity and Area Equation and Calculator
• Flow of Air in Pipes Equation and Calculator
• Flow of Compressed Air in Pipes Equation and Calculator
• Flow of Water in Pipes Equations and Calculator
• Fluid Flow Open Channel Calculator
• Head loss in a Pipe Calculator
• Hydraulic Accumulator Sizing Equations and Calculator Most accumulators used within industry are limited to an operating pressure of 3000 psi. Accumulators are available which operate at higher pressures.
• Knudsen Number (Kn) Equation and Calculator
• Vacuum Pressure Units Conversion From Torr to Various Units Calculator
• Vacuum Mean Gas Velocity Equations and Calculator
• Partially Full Pipe Flow Calculator
• Pipe Thermal Expansion U Shape Loop Equations and Calculator for Pipe
• Pipe Flow & Friction Factor Calculator
• Pump Sizing Design Calculations Excel Spreadsheet Calculator Premium Membership Required
• Hazen-Williams Water Pressure Drop Flow Rates Calculator Equation
• Head Loss at Pipe Entrance Equations and Calculator
• Head Loss at Pipe Abrupt Exit Equations and Calculator
• Head loss and head loss coefficient equation and calculator of a fluid in across a screen (circular metal wire mesh) inside a pipe.
• Heat Loss Insulated Pipe Equation and Calculator
• Heat Loss From a Pipe Calculator
• Head coefficient and head loss across angled louvers inside a pipe equation and calculator.
• Horsepower Required to Compress Air Adiabatically and Isothermally
• Hydrostatic Discharge of Liquid From Vessel Side / Lateral Equations and Calculator
• Hydrostatic Discharge of Liquid From Vessel Bottom Equations and Calculator
• Vessel With Pressure Applied to Liquid Level Equations and Calculator
• Hydraulic Pneumatic Cylinder Extend Force
• Hydraulic Pneumatic Cylinder Retract Force
• Rainfall Intensity and Peak Storm Water Runoff Rate Equations and Calculator
• Siphon Flow Rate from Small Pipes Equation and Calculator
• O-Ring Leak Rate Equation and Calculator
• Poppet Seal Gasket Oring Operating Life and Reliability Equations and Calculator
• Thermal Molecular Velocity of Gas Molecules Vacuum System Formulas and Calculator
• Velocity of Escaping Compressed Air Equation and Calculator
• Viscous Torque and Power on Rotating Shafts Equation and Calculator

Sheet Metal Bend Allowance

• Distance Bend to Mold Line
• Bend Allowance

Plastic Snap Fit

• Snap Fit Straight Finger Strain
• Snap Fit Tapered Finger Strain
• Tapered Snap Fit Beam Bending Equation and Calculator
• Plastic Post and Hub Press Fit Equations / Calculator
• Plastic Screw Design Equations and Calculator Theoretical equations to calculate the strength of plastic screwed joints.

Conversions, Fluids, Torque, General

• Acceleration Conversion - Equivalent
• Angle Conversion Calculator
• Binary to Decimal Conversion Calculator
• Binary to Hexadecimal Conversion Calculator
• Binary to Octal Conversion Calculator
• Concrete Volume Estimator Calculator Slab
• Concrete Volume Estimator Calculator Column
• Energy To Work Conversion - Equivalent
• Fractions Calculator
• Hexadecimal to Binary Conversion Calculator
• Hexadecimal to Decimal Conversion Calculator
• Hexadecimal to Octal Conversion Calculator
• Length Conversion - Equivalent
• Mass Conversion - Equivalent
• Octal to Binary Conversion Calculator
• Octal to Decimal Conversion Calculator and Table
• Octal to Hexadecimal Conversion Calculator and Table
• Power Conversion - Equivalent
• Pressure Conversion - Equivalent
• Temperature Conversion - Equivalent
• Time Conversion - Equivalent
• Metrology Conversion - Equivalent
• Scientific Calculator
• Area, Triangle, Square, Circle etc.
• Fluids Flow, Aerodynamics
• Automotive Horsepower
• Kinetic Energy
• Velocity Conversion - Equivalent
• Minutes, Seconds & Decimals Convert
• Volume
• Cube Volume Equations and Calculator
• Square Prism Volume Equations and Calculator
• Cylinder Volume and Surface Area Equation and Calculator
• Hollow Cylinder Volume Equation and Calculator
• Cone Volume and Area Equation and Calculator
• Frustum of Cone Volume and Area Equation and Calculator
• Sphere Volume and Area Equation and Calculator
• Spherical Sector Area, Volume Equation and Calculator
• Spherical Segment Volume and Area Equation and Calculator
• Spherical Zone Volume and Area Equation and Calculator
• Spherical Wedge Volume and Area Calculator and Equation
• Hollow Sphere Volume Equation and Calculator
• Torus Volume and Area Equation and Calculator
• Pipe Strength
• Wind Chill
• Assembly Mass Estimate Worksheet
• Thermal Conductivity Conversions Calculator

Triangle / Trigonometry Solutions

• Triangle Solutions Menu
• Sides b and c Known
• Side c and Angle B Known
• Sides a and b Known
• Sides a and c Known
• Side a and Angle B Known
• Side a and Angle A Known
• Side c and Angle A Known
• Side b and Angle B Known
• Side b and Angle A Known
• Oblique Triangle Solutions Calculator
• Right Triangle Solutions Calculator

Financial & Misc.

• Bessel Y Function Calculator
• Mortgage
• Credit Card Debt
• Compound Interest
• Stock Value
• Simple Percentages Calculator
• Percent Error Calculator
• Percent Difference Calculator
• Vehicle Car Loan Equation and Calculator

Welding Design and Engineering Data Calculators Main Menu

• Weld Fatigue Life Analysis of Welded Structures Spreadsheet Calculator
• Axial Load Full Penetration Weld Calculator
• Axial Normal Load Partial Penetration Weld Calculator
• Tee Section Load Full Penetration Weld Stress Calculator
• Tee Section Load Full Penetration Weld Moment Loading Applied Stress Calculator
• Tee Section Load Full Penetration Weld Perpendicular Loading Applied Stress Calculator
• Butt Weld Bending Moment Load Full Penetration Weld Stress Stress Calculator
• Partial Penetration Weld Bending Moment Weld Stress Calculator
• Tee Section Load Partial Penetration Weld Perpendicular Loading Applied Stress Calculator
• Tee Section Loaded Partial Penetration Weld Bending Moment Applied Stress Calculator
• Stress created for a Partial Penetration Weld Load Perpendicularity Weld Stress
• Stress created for the three plate splice configuration weld equals plate thickness
• Two Plate Weld Axial Load Weld Stress Calculator
• Stress created for the two plate parallel weld configuration calculator
• Stress created for the two plate perpendicular weld configuration Calculator
• Stress lap plate perpendicular weld configuration calculator
• Three Lap Plate Weld Axial Load Parallel Weld Stress Calculator
• Plate "L" Section Weld Stress Calculator
• Weld Shear Stress for Applied Torque on Solid Shaft Calculator
• Weld Shear Stress for Applied Bending Moment on Solid Shaft Calculator
• Weld Shear Stress for Applied Bending Moment on Rectangular Square Shaft Calculator
• Weld Shear Stress for Applied Bending Moment on Rectangular Beam Calculator
• Weld Shear Stress for Applied Bending Moment on Rectangular Beam Calculator
• Weld Shear Stress for Applied Bending Force on Rectangular Beam Calculator
• Weld Stress for Bending Moment Applied Rectangular Beam Calculator
• Weld Stress for Load Applied to Rectangular Beam Calculator
• Weld Stress for Moment Applied to Rectangular Beam Calculator
• Weld Stress for Load Applied to Rectangular Beam Calculator
• Weld Stress for Moment Applied to Rectangular Beam Calculator
• Weld Stress for Moment Applied to Rectangular Beam Calculator
• Weld Stress for Load Applied to Rectangular Beam Calculator
• Weld Stress for Bending Moment Applied to Rectangular Beam Calculator
• Weld Stress for Splice Plate Beam Calculator
• Welding Splice Design of Beam Spreadsheet Calculator
• Weld Weight and Area Spreadsheet Calculator Calculations for Double V, Single V, Compound V, Backing Strip and J groove weld weight and area.

Engineering Physics

• Gravitational Time Dilation for Object (GPS Satellite) in Orbit Equation and Calculator
• Velocity Time Dilation for Object Equation and Calculator