Algebra & Equations
Percent Error
Error of a measurement vs the true value.
Formula
Formula
exp − truetrue · 100
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| exp | measured value | real number (ℝ) | — | input |
| true | accepted value | computed result | — | result |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenmeasured = 9.7, true value = 9.8
Result1.020408163
Example 2
Givenmeasured = 102, true value = 100
Result2