Education

Binomial Distribution Calculator

Exact and cumulative binomial probabilities, mean and variance.

Education

Local only

Trials (n)Successes (k)Success probability (p)

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Your text is processed on your device — nothing is uploaded to a server.

How it works

Uses log-gamma for numerical stability with large n.

Good to know

How do I use it?

Fill in the options and press “Calculate”. Check the result, then copy or download it.

How does it work?

Uses log-gamma for numerical stability with large n.

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.