Percentage error
Calculate percentage error with clear inputs and assumptions.
Your inputs stay in your browser. Displayed results are rounded to a maximum of 12 significant digits.
Method and assumptions
Method version 1.0.0 · Updated
Calculate
Formula: Calculate percentage error with clear inputs and assumptions.
Calculate percentage error with clear inputs and assumptions.
- expected
- Reference value (> 0)
- actual
- Measured value
Results are estimates where noted and depend on the entered assumptions.
Calculate with code
These short examples use the same inputs and core calculation as this tool. Adapt validation and formatting to your application.
JavaScript
const measured = 9.5, expected = 10;
console.log(Math.abs(measured - expected) / Math.abs(expected) * 100); // 5%TypeScript
const measured = 9.5, expected = 10;
console.log(Math.abs(measured - expected) / Math.abs(expected) * 100); // 5%Python
measured, expected = 9.5, 10
print(abs(measured - expected) / abs(expected) * 100) # 5.0Java
double measured = 9.5, expected = 10;
System.out.println(Math.abs(measured - expected) / Math.abs(expected) * 100); // 5.0C#
double measured = 9.5, expected = 10;
Console.WriteLine(Math.Abs(measured - expected) / Math.Abs(expected) * 100); // 5