Percent Error Calculator
The percentage difference between a measured value and the true value.
Result
Percent error (%)
2.00
How it works
Error = |measured − actual| ÷ |actual| × 100
Percent error shows how far a measurement is from the true value, as a percentage. The smaller it is, the more accurate the measurement.
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Frequently asked questions
How is percent error calculated?
Take the absolute difference, divide by the true value, multiply by 100.
Can it be over 100%?
Yes — if the measurement is more than double the true value.
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