Percent Error Calculator

Enter value and click on calculate. Result will be displayed.

Approximated/measured value :
Exact/actual value :

Result :

Percent error :
Percent error non absolute :
Absolute error :
What is the percentage error? Percentage error is a way to express the discrepancy between an observed value and the true or expected value. It is often used to evaluate the precision of a measurement or the correctness of a calculation. Percentage error can be positive or negative, depending on whether the observed value is greater or smaller than the expected value.
Percent error calculator is used to calculate the relative error between the actual value and the approximated value found in a measurement.
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