Statistics Calculators
This is the directory of statistical calculators and tables on StatCalculators.com. Use it to jump to a tool by topic, including the new p-value, t-test, sample size, confidence interval, regression, ANOVA, and correlation calculators.
Free statistical calculators and tables, grouped by topic. New tools from November 9, 2026 are marked as new.
Hypothesis tests and p-values
Confidence intervals and sample size
Z scores and the normal distribution
Descriptive statistics
Correlation and regression
Probability distributions
Statistical tables
Other tools
Related calculators and guides
Frequently asked questions
Yes. The tools on StatCalculators.com are free to use in a browser. You do not need an account.
Use the p-value calculator if you already have a z, t, chi-square, or F statistic. If you still need to compute a t statistic from data, start with the t-test calculator. If you have several group means, use the one-way ANOVA calculator.
They are linked in the Statistical tables section on this page, including the z-score table, t-distribution table, chi-square table, and F-distribution table.
Yes. The sample size calculator covers a mean or a proportion, with an optional finite population correction.