Percent Error Calculator

Engineering Calculators

The percentage error, or percent error, is a measure of how innaccurate a measurement is, relative to how large the measurement is. The relative error is calculated as the absolute error divided by the magnitude of the exact value. The absolute error is the magnitude of the difference between the actual value and the estimated value.

This calculator calculates the percent difference of variablesas indicated:

Percent Error Equations behind this calculator.

Design Variables
Measured =
Actual =
Percent Error (%) =

Automatic recalculation