Relative Error Calculator

Relative Error Calculator

Calculate absolute error, relative error, and percentage error instantly.

The reference or accepted value.
The value obtained experimentally.
Calculation Result
Relative Error
0
Relative error in decimal form
Absolute Error 0
Percentage Error 0%
Difference 0
The measured value equals the true value.

Step-by-Step Calculation

Formula
Relative Error = |Measured − True| ÷ |True|
What is relative error?
Relative error measures the size of the absolute error compared with the true or accepted value. It is commonly expressed as a decimal or converted into percentage error.

Percentage Error = Relative Error × 100