How this online coin flip works
Press Flip the coin and the page asks your browser for a random number from its secure generator. An even result means heads and an odd result means tails, so each side has exactly a 50% chance. The spinning coin is only for fun; the answer is decided the instant you press the button.
Heads or tails: when to use it
- Choosing who bats first, who serves or who starts the board game.
- Breaking a tie between two snacks, two films or two places for lunch.
- Teaching probability: flip ten coins at once and compare with your friends.
Streaks and your personal best
A streak counts how many flips in a row landed on the same side. Real randomness produces streaks more often than most people expect, so do not be surprised by a run of four or five. Your longest streak is saved in your browser, and you can share it as an image.
Want more than two choices? Use the spin the wheel or the dice roller.
Frequently asked questions
Is this coin flip fair?
Yes. Each flip uses your browser's secure random generator, so heads and tails each have a 50% chance. Past flips do not change the next one, even after a long streak.
Why do I sometimes get the same side many times in a row?
Streaks are normal in random results. Getting five heads in a row happens about once in every 32 tries. Your longest streak is saved on this device as your personal best.
Can I flip more than one coin?
Yes. Choose 3 or 10 coins to flip them together. You will see every coin in order plus the number of heads and tails.
Can I use it for important decisions?
It is great for fun choices like who bats first or which movie to watch. For serious decisions about money, health or school, take time and talk to someone you trust.