Calculate absolute and relative error with percentage values.
Values
Error Analysis
Percentage Error2.00%Relative Error as %
Absolute Error0.4000|Observed - True|
Relative Error0.0200Absolute / True
About this calculator
Overview
Relative Error measures the ratio of the absolute error to the true value. It provides perspective on the significance of an error by scaling it against the size of the target value. This is often more informative than absolute error alone.
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Pro Tips
Always use the true value in the denominator when calculating relative error.
If the true value is zero, relative error is undefined.
A lower relative error indicates a higher precision in measurement.
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Fun Facts
"An absolute error of 1 gram is massive for a diamond but negligible for a truckload of gravel. Relative error captures this difference."
"In physics, percentage error is commonly used to compare experimental results to theoretical values."
"Relative error is dimensionless, meaning it doesn't have units, which makes it easier to compare across different scales."
