Online Tools and Calculators > Math > Percentage Error Calculator

Percentage Error Calculator

Estimated value:
Actual value:

About This Tool

The online Percentage Error Calculator is used to calculate the percentage error.

Percentage Error Definition

The percentage error, also known as percent error, is a measure of how innaccurate a measurement is, standardized to how large the measurement is. It is the relative error expressed in terms of per 100. 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.

Calculating Percent Error

The percentage error calculation formula is as following:

Percent error = (Estimated value - Actual value) / Actual value × 100% (in absolute value)

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