Percentage Error Calculator
Find the percent error between a measured quantity and its true value.
For educational estimation only.
Examples
- Measured 105 vs actual 100 ⇒ 5%
- Measured 95 vs actual 100 ⇒ 5%
FAQ
Why square the difference?
Squaring removes negative signs before taking the square root.
Does percent error show accuracy?
Yes, smaller errors mean measurements closer to the true value.
Can actual value be zero?
No, percent error is undefined when the true value is zero.
Is the result signed?
No, percent error is always positive.
Additional Information
No additional information available.