Error Function
Result
Calculated result
0.8427006897
Based on the values entered.
↗ Math
Error Function — free online calculator.
Formula
erf(x) = (2/√π) × ∑[0,x] e^(-t²) dt (Taylor series)
- Error Function calculates its result from x. It uses the formula erf(x) = (2/√π) × ∑[0,x] e^(-t²) dt (Taylor series). Change any input to recalculate the result instantly.
- The main inputs are x. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Error Function
Inputs
- x: 1
Using x = 1, the calculated result is 0.8427006897.
Sample result: Calculating…
Frequently asked questions
What does the Error Function calculate?
Error Function — free online calculator.
Which values should I enter?
Enter x using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: erf(x) = (2/√π) × ∑[0,x] e^(-t²) dt (Taylor series).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.