Percent Error Calculator
Calculate the percent error between measured and true values.
Result
Results are estimates for general information only and are not professional advice.
Percent error
Percent error shows how far a measurement is from the true value, as a percentage: |measured − true| ÷ |true| × 100. It is widely used in science and engineering to express accuracy.
Frequently Asked Questions
What is the Percent Error Calculator?
Calculate the percent error between measured and true values. It runs instantly in your browser and is completely free.
Is the Percent Error Calculator free and does it require signup?
Yes. Every calculator on Calculatis is 100% free with no registration, and the values you enter are never stored.
How accurate is the Percent Error Calculator?
It uses standard, widely-accepted formulas. Results are reliable estimates for general use and are not a substitute for professional advice.