Percent Error Calculator
Calculate the percent error between an experimental value and a theoretical or accepted value.
Percent Error
2.00%
Excellent accuracy
Absolute Error
2.0000
Relative Error
0.020000
Formula
% Error = |Experimental - Theoretical| / |Theoretical| × 100
= |98 - 100| / |100| × 100
= 2.0000%
Summary
Experimental Value98
Theoretical/Accepted Value100
Difference-2.0000
What is Percent Error?
Percent error measures how far a measured value is from the true or accepted value, expressed as a percentage. It's fundamental in experimental sciences for evaluating accuracy.
How to Calculate
Experimental - Theoretical
Applications
Used in chemistry, physics, and engineering to measure how close experimental results are to theoretical or accepted values.