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Coin Flip Simulator

Flip a fair virtual coin one or more times and count heads and tails.

Generated on this deviceNew result with each generation
Random selection
Random selection

Generate a new independent result whenever you need one.

See the method

Set your choices

Runs on your device

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Ready when you are

Let’s generate.

Use the Generate button to see your result.

Generated values are not saved.

How to use this tool

  1. Enter number of flips.
  2. Select Generate for a fresh value.
  3. Check the method and assumptions below before using the result.

Input reference and sample values

Use the units and choices shown for each field. Sample values are provided for practice, not as recommendations.

InputFormat and unitsSample
Number of flipsNumeric value. Minimum: 1. Maximum: 1000.10

The method, explained

Each flip independently draws a cryptographic random bit and maps it to Heads or Tails. Counts summarize the resulting sequence.

A WORKED EXAMPLE

Ten flips produce ten outcomes. An even number of flips does not guarantee equal counts of heads and tails.

What to keep in mind

The simulation assumes a fair, independent two-outcome coin. It does not model physical coin bias or predict the next real flip.

Common questions

Does a run of heads make tails more likely next?

No. Under independent fair flips, the next probability remains one half.

Will repeated runs match?

Usually they differ, but a repeated sequence remains possible.

Methodology maintained by ClarityKit. How these tools are built and checked.