Error Percent Calculator or Percent Difference Calculator
![](/img/adv.png)
Percent of Error Calculator
An online percentage error calculator.
Percent Difference Formula
Percent error or percent difference calculations use the following formula
![](/img/per-err-formula.png)
where the theoretical value is looked up in a resource book.The answer is positive, an absolute value.
![](/img/adv.png)
![](/img/adv.png)