Percent Error Calculator

Calculate the percent error between accepted and observed values with precision and ease

Assess measurement accuracy against true or theoretical values.

What is Percent Error?

Percent error measures the accuracy of a measurement compared to a true or accepted value. It is calculated as the absolute difference between the observed and accepted values, divided by the accepted value, then multiplied by 100.

FORMULA
Percent Error =
|Observed Value − Accepted Value|
Accepted Value
× 100%
Alternative form:
Percent Error = |(Observed - Accepted)| / Accepted × 100%

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