Flip virtual coins with animated 3D visualization. Track statistics, identify streaks, and make fair random decisions. Perfect for games and decision making.
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Adjust probability for probability experiments
| Consecutive Heads | Probability | Odds |
|---|---|---|
| 2 in a row | 25% | 1 in 4 |
| 3 in a row | 12.5% | 1 in 8 |
| 4 in a row | 6.25% | 1 in 16 |
| 5 in a row | 3.125% | 1 in 32 |
| 10 in a row | 0.098% | 1 in 1,024 |
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Click to flip a virtual coin instantly. Each flip has a true 50/50 probability using cryptographically secure randomness. Track your flip history, view heads vs tails percentages, and identify streaks. Perfect for making fair random decisions between two options.
Yes! Our coin flipper uses the Web Crypto API (crypto.getRandomValues) which provides cryptographically secure random numbers. Each flip has exactly 50% probability for heads and 50% for tails, making it mathematically fair.
The probability decreases exponentially: 2 heads in a row = 25% (1/4), 3 in a row = 12.5% (1/8), 4 in a row = 6.25% (1/16), 5 in a row = 3.125% (1/32), 10 in a row = 0.098% (1/1024). Each flip is independent.
Yes! Set the number of coins from 1 to 100. All coins flip simultaneously and you'll see individual results plus totals. Great for simulating probability experiments or games that require multiple coin tosses.
The gambler's fallacy is the mistaken belief that past results affect future probabilities. If you flip 5 heads in a row, the next flip is still 50/50 - coins have no memory. Each flip is independent regardless of previous outcomes.
Yes! Our advanced settings allow you to adjust the heads probability from 1-99%. This is useful for probability experiments, teaching statistics, or simulating weighted decisions. A 70% heads coin will average 7 heads per 10 flips.
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