Statistics Calculators

Mean, standard deviation, variance and other statistical measures — computed step by step from your data.

All Statistics Calculators 4

Calculate the mean, median, mode, range and sum of any list of numbers — paste or type your data and get every statistic at once.

Calculate sample or population standard deviation and variance from your data — with the mean, every squared deviation and full steps shown.

Full descriptive statistics for any data set: mean, median, mode, quartiles, IQR, variance, standard deviation, standard error and more.

Run a one-sample, two-sample (Welch) or paired t-test: get the t statistic, degrees of freedom and two-tailed p-value with interpretation.