Binomial Probability Calculator
Calculate exact, cumulative, and complementary binomial probabilities with full distribution table.
Probability Variables
P(X=k) = C(n,k)·pᵏ·(1−p)ⁿ⁻ᵏ
Total number of independent trials (max 200)
Desired number of successes (0 ≤ k ≤ n)
Probability of success per individual trial (0 to 1)
No Probability Computed
Enter number of trials (n), desired successes (k), and success probability per trial (p) on the left, then click Calculate.
How to use Binomial Probability Calculator
Enter your data
Fill in the required fields in the tool workspace above.
Adjust settings
Customize any options or parameters to fit your needs.
Get instant results
Results are calculated in real time as you type.
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