# Plot Graphs - P-Value and Significance Calculator

Plot Graphs | Math Tools |

This little calculator helps you to get the P-Value and and a statistical significance from any of the inputvariables listed below.
## Calculate the P-Value from a fit result

If you performed a Chi2 Fit just enter the obetained Chi2 and the NDF of the Fit in the form below. You will obtain the P-Value for your fit immediatelly.
## Calculate the Significance in Units of Sigma

Here you can transalte a p-Value into a statistical significance in units of sigma:
**Note: **You can also enter values like 3.21e-06 !

Three Sigma correspond to 99% confidence level. More information about the concept of p-values and significance you find in the post:

https://www.plotgraphs.com/blog/statistics-when-is-something-significant-and-what-does-3-or-5-sigma-mean/

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