This site provides free online tools for probability and statistics calculations. Our platform offers a suite of calculators designed to solve common problems while teaching fundamental concepts.
Our tools allow you to:
Choose a tool from the options below to get started.
Calculate probabilities for various scenarios.
Generate random numbers from various distributions.
Calculate factorials with explanations.
Calculate expected values for random variables.
Work with the normal probability distribution.
Calculate binomial probabilities.
Work with the Poisson probability distribution.
Calculate hypergeometric probabilities.
Convert raw scores to standardized z-scores.
Conduct t-tests to compare means.
Perform chi-square tests for independence or goodness of fit.
Measure the strength of relationships between variables.
Calculate and interpret odds ratios.