Overview
Binomial Distribution is an easy and free online tool that runs in your browser.
PMF · CDF · Quantile — local, easy, free
Free online Binomial Distribution Calculator. Compute Probability Mass Function (PMF), Cumulative Distribution Function (CDF), and quantiles.
Statistics
This browser-based tool is designed to be fast, easy to use, and private by default. Open the tool, adjust the settings, and get results instantly without creating an account or sending files to a server.
Everything runs locally in the browser whenever possible, which reduces friction for users and makes the page more useful as a direct-answer landing page from search.
The following topics are closely related to this tool and help explain what it is for:
It computes the Binomial PMF P(X=k), the CDF P(X≤k), the quantile for a given q, and shows mean/variance with a PMF bar plot.
n = number of independent trials, p = success probability per trial, k = number of successes, q = probability for the quantile (0–1).
PMF is the probability of exactly k successes. CDF is the probability of at most k successes (up to and including k).