Percent Error Calculator
Calculate the percent error between an experimental/estimated value and the true/accepted value. Used in science and statistics.
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What this calculator does
Percent Error Calculator helps you quickly estimate calculate the percent error between an experimental/estimated value and the true/accepted value. used in science and statistics. with clean output and clear next steps.
How the calculation works
Enter Experimental / Estimated Value, Actual / Accepted Value and this calculator uses standard formulas to determine Percent Error and Absolute Error. The output is displayed immediately in a user-friendly format.
Example calculation
For example, enter realistic values into the Percent Error Calculator to see how the calculator produces Percent Error and Absolute Error that you can use for planning and comparison.
Disclaimer
The calculations provided by this website are for informational purposes only and should not be considered financial, legal, tax, or professional advice.
Frequently Asked Questions
What is a good percent error?
In science labs, under 5% is acceptable. Under 1% is excellent. In engineering, tolerance depends on application.