used by people in more than 230 countries!

Below you will find descriptions and links to 4 free statistics calculators for computing values associated with the Chi-square distribution.

If you like, you may also use the search page to help you find what you need.

This calculator will tell you the critical Chi-square (Χ^{2}) value associated with a given (right-tail) probability level and the degrees of freedom.

This calculator will compute the cumulative distribution function (CDF) for the Chi-square distribution, given the point at which to evaluate the function x, and the degrees of freedom.

This calculator will tell you the one-tailed (right-tail) probability value for a chi-square test (i.e., the area under the chi-square distribution from the chi-square value to positive infinity), given the chi-square value and the degrees of freedom.

This calculator will compute the probability density function (PDF) for the Chi-square distribution, given the point at which to evaluate the function x, and the degrees of freedom.