Flip a virtual coin with realistic animation. Track statistics, run best-of series, and analyze long-term probability distributions.
Is this coin flip truly fair?
Yes. We use Math.random() which produces values uniformly distributed between 0 and 1. Values < 0.5 are heads, ≥ 0.5 are tails — giving exactly 50% probability each.
Why does my streak not converge to 50/50 quickly?
The law of large numbers says probability converges with many trials. Short streaks can show significant deviation — this is normal randomness, not bias.
What is a Best of 3 series?
First to win 2 flips wins the series. Best of 5 requires 3 wins; Best of 7 requires 4 wins.
Can I flip multiple coins at once?
Yes. Use 'Flip × 10' or 'Flip × 100' to flip multiple coins in one click. All results contribute to your session statistics.
How is the streak detected?
We look at consecutive identical results from the most recent flip backwards in your history. A streak is highlighted when it reaches 3 or more.
Does the tool remember my stats?
Stats are kept for the current session only. Refreshing the page or clicking Reset clears all data.