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coin flip probability
Coin Flip Probability
Explore the math behind fair coin flips. Calculate exact outcomes, cumulative chances, and the probability of a run.
Heads on one flip50%
Tails on one flip50%
Exactly 5 heads in 1024.61%
At least 5 heads in 1062.30%
At most 5 heads in 1062.30%
5 heads or tails in a row3.13%
Made for a clear decision
Explore the math behind fair coin flips. Calculate exact outcomes, cumulative chances, and the probability of a run. Results are generated in your browser, so the tool remains fast, private, and easy to use on any device.