Binomial Probability Calculator - Free, Instant, In Your Browser
Enter the number of trials, the number of successes, and the probability of success on each trial.
How to use Binomial Probability Calculator
- 1Enter the required date(s) and details above.
- 2Click Calculate - Binomial Probability Calculator runs instantly, right in your browser.
- 3Read your result below.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
P(X=k) = C(n,k) x p^k x (1-p)^(n-k), the binomial probability mass function.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.