Fritzsche Formula Calculator Friction Units
Blocks shown as light blue are editable
temperature at standard conditions Ts = ˚ R
pressure at standard conditions Ps = psia
volume flow rate at standard conditions Qs = SCFM
Calculated Results Equation 1
friction factor F = -
     
Fritzsche Formula Calculator Pressure Drop Units
Blocks shown as light blue are editable
internal diameter of pipe d = in
pipe length L = ft
volume flow rate at standard conditions Qs = SCFM
average pressure P = psia
pressure at standard conditions Ps = psia
 airflow temperature T = ˚ R
temperature at standard conditions Ts = ˚ R
Calculated Results Equation 2
pressure drop ΔP = psi
     
Fritzsche Volume Flow Rate Calculator Units
Blocks shown as light blue are editable
internal diameter of pipe d = in
pipe length L = ft
upstream pressure P1 = psia
upstream pressure P2 = psia
pressure at standard conditions Ps = psia
 airflow temperature T = ˚ R
temperature at standard conditions Ts = ˚ R
Calculated Results Equation 3
volume flow rate at standard conditions Qs = SCFM