Percent Error Calculator
Find the percent error between a measured (experimental) value and the true (accepted) value.
Percent error
2.140672783%
- Absolute error
- 0.21
- Signed error
- -2.140672783% (under)
Show the work
Absolute error: how far off the measurement is
|measured − true|
|9.6 − 9.81| = 0.21
Divide by the true value, times 100
percent error = |measured − true| ÷ |true| × 100
0.21 ÷ 9.81 × 100 = 2.140672783%
How it works
Percent error = |measured − true| ÷ |true| × 100
Questions
- How does the percent error calculator work?
- Percent error = |measured − true| ÷ |true| × 100.
- What do I need to enter?
- Measured value, True (accepted) value. Optional fields can be left blank.
Related tools
- Percent Tolerance CalculatorFind the allowed range for a nominal value with a ± percent tolerance, and check whether a measurement passes.
- Long Division CalculatorDivide whole numbers to get the quotient and remainder, with every long-division step shown.
- Factorial CalculatorCalculate n! exactly for whole numbers up to 5,000, with its digit count and scientific notation.
- Arithmetic Sequence CalculatorFind the nth term and the sum of the first n terms of an arithmetic sequence, and list its terms.
- Geometric Sequence CalculatorFind the nth term, the sum of n terms and the infinite sum of a geometric sequence.
- Exponential Growth & Decay CalculatorProject a quantity that grows or shrinks by a fixed percent per period, with its doubling time or half-life.
Want this on your site? Embed the percent error calculator.