Flip a Coin
Flip a fair virtual coin once or up to 1,000 times and see heads and tails counts with percentages. Settle decisions instantly.
Runs on your device
Result
Results appear here after you select “Flip”.
What it does
Each flip is an independent 50/50 draw from a secure random source. Flip many times to see how results even out.
How to use it
- Choose how many flips.
- Press Flip.
- Read the result and the totals.
Example
The example fills in realistic values and runs the tool. Select Try an example above to see it.
When it helps
- Settling a decision.
- Deciding who goes first.
- Teaching probability.
Questions
Is a real coin exactly 50/50?
Research by Persi Diaconis found real tosses land on the starting side slightly more often. This virtual coin is exactly fair.
Why might I get five heads in a row?
Streaks are normal in random sequences. The chance of five in a row is about 3%.
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