Binomial Distribution Calculator

Calculate binomial probabilities for discrete outcomes with fixed trials and independent events.

Binomial Parameters

Set n, p, k, and select probability mode

Probability Mode
Number of Trials (n)
Probability of Success (p)
Number of Successes (k)
P(X = ) P(X ≤ ) P(X ≥ )
Mean
Variance
Std Dev

Enter binomial parameters above and tap Calculate.

Step-by-step Solution
Probability Mass Function
Cumulative Distribution Table
k P(X=k) P(X≤k) P(X≥k)