Percent Error Calculator
Calculate percent error, absolute error and relative error between experimental and theoretical values.
How to Use This Percent Error Calculator
- 1Enter your experimental (measured) value
- 2Enter the theoretical (actual/accepted) value
- 3Click Calculate to see percent error, absolute error and relative error
Formula
Percent Error = |Experimental − Theoretical| / |Theoretical| × 100%
Frequently Asked Questions
Related Calculators
Percentage Calculator
Calculate percentages with three modes: find percentage of a number, what percent, or percent change.
Standard Deviation Calculator
Calculate standard deviation, variance and mean for both population and sample data sets.
Z-Score Calculator
Calculate the z-score (standard score) from a value, mean and standard deviation. Find percentile ranking.
About Percent Error Calculator
The percent error calculator compares an experimental (measured) value against a theoretical (accepted) value. It computes percent error, absolute error and relative error — essential for science labs and experiments.