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Percent Error Calculator

Approximated/measured value:
Exact/actual value: 
Percent error:
Percent error non absolute:
Absolute error:

Percent Error Calculator

It is a free online percent error calculator. It supports you to measure the error value of an experiment. It offers you the most accurate results.

Percent Error Formula

Percent Error = [(True Value - Measured Value)/True Value ] X 100%

How to calculate the Percent Error?

To calculate the percent error we go with an example.


Measured Value 23, True Value 24 then find percent error?

We know that percent error formula.

Percent Error = [(True Value - Measured Value)/True Value ]X 100%

Percent Error = (23-24/24) x 100

P. E = (-1/24) X 100

P.E = -0.041666 X 100


P.E = 4.1666666667%