used by people in more than 220 countries!

Below you will find descriptions and links to 11 free statistics calculators for computing cumulative distribution functions (CDF).

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

This calculator will compute the cumulative distribution function (CDF) for the beta distribution (i.e., the area under the beta distribution from 0 to x), given values of the shape parameters, and the point at which to evaluate the function.

This calculator will compute the cumulative distribution function (CDF) for the binomial distribution, given the number of successes, the number of trials, and the probability of a successful outcome occurring.

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 compute the cumulative distribution function (CDF) for the Fisher F-distribution (i.e., the area under the F-distribution from 0 to x), given the numerator and denominator degrees of freedom, and the upper limit of integration x.

This calculator will compute the cumulative distribution function (CDF) for the noncentral F-distribution, given an F-value, the numerator and denominator degrees of freedom, and the noncentrality parameter.

This calculator will compute the cumulative distribution function (CDF) for the noncentral t-distribution (i.e., the area under the noncentral t-distribution from negative infinity to t), given a t-value, the degrees of freedom, and the value of the noncentrality parameter.

This calculator will compute the cumulative distribution function (CDF) for the normal distribution (i.e., the area under the normal distribution from negative infinity to x), given the upper limit of integration x, the mean, and the standard deviation.

This calculator will compute the cumulative distribution function (CDF) for the Poisson distribution, given the number of event occurrences and the expected number of event occurrences.

This calculator will compute the cumulative distribution function (CDF) for the standard normal distribution (i.e., the area under the standard normal distribution from negative infinity to x), given the upper limit of integration x.

This calculator will compute the cumulative distribution function (CDF) for Student's t-distribution (i.e., the area under the t-distribution from negative infinity to t), given a t-value and the degrees of freedom.

This calculator will compute the cumulative distribution function (CDF) for the (continuous) uniform distribution, given the values of the upper and lower boundaries of the distribution and the point at which to evaluate the function.