Statistics & Data Analysis Calculators >

Percent Error Calculator

Measure accuracy.

Start Value ($)

End Value ($)

Number of Periods (Years)

How to use Percent Error Calculator

Experimental Value: What you measured.
Theoretical Value: The known constant (e.g., gravity 9.8).
Calculate: The % error (absolute difference).

About Percent Error Calculator

The Percent Error Calculator is a tool for science and engineering classes. It measures the accuracy of an experimental value compared to the true or accepted value.

Essential for analyzing lab results.