Calculate the precision of a measurement by comparing observed vs. theoretical values.
Measurements
Error Analysis
Percent Error2.00%
Absolute Error2
About this calculator
What is Percent Error?
Percent error is a measure of how far off an experimental value is from an accepted or theoretical value. It is a standard way to report accuracy in lab reports.
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Pro Tips
Accuracy refers to how close a measurement is to the true value.
The value is usually expressed as a non-negative percentage.
A lower percent error means higher accuracy.
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Fun Facts
"In some fields, a 5% error is considered acceptable, while in precision engineering, errors must be less than 0.0001%."
