Percent Error Calculator

Compare a measured value with an accepted reference.

See the absolute percentage difference using the accepted value as a reference.

Your inputs stay on your device

Calculate percent error

live result

Measured value

Accepted value

Percent error

Difference

-0.3

Calculations run locally and describe the supplied values only.

Context & Reference

For comparing a measured value with an accepted reference.

calculator guide

Divides absolute difference by the absolute accepted value.

Use this calculator with your own values, then review the clearly labelled result and copy it when you need it elsewhere.

Percent error uses the accepted value as its reference denominator.

Compare measured 9.7 with accepted 10.

A zero accepted value cannot provide this reference.

This calculator runs locally in this browser. A zero accepted value cannot provide this reference.

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