Pevlika Browser Apps

Binomial Probability Calculator

Exact and cumulative binomial probabilities.

Runs in your browser — nothing is uploaded

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How to use Binomial Probability Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

P(X = k) = C(n, k)·pᵏ·(1 − p)ⁿ⁻ᵏ

Example: 7 heads in 10 fair coin flips: 11.7%.

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