 # Chi-Square Critical Values Calculator

<-- Enter α
<-- Enter Degrees of Freedom

### How does the Chi-Square Critical Values Calculator work?

Given a probability, this calculates the critical value for the right-tailed and left-tailed tests for the Chi-Square Distribution. CHIINV from Excel is used as well.
This calculator has 2 inputs.

### What 1 formula is used for the Chi-Square Critical Values Calculator?

1. df = n - 1

For more math formulas, check out our Formula Dossier

### What 4 concepts are covered in the Chi-Square Critical Values Calculator?

critical value
a point on the distribution of the test statistic under the null hypothesis that defines a set of values that call for rejecting the null hypothesis.
critical value
a point on the distribution of the test statistic under the null hypothesis that defines a set of values that call for rejecting the null hypothesis.
degrees of freedom
number of values in the final calculation of a statistic that are free to vary
probability
the likelihood of an event happening. This value is always between 0 and 1.
P(Event Happening) = Number of Ways the Even Can Happen / Total Number of Outcomes