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Flip a Coin

Heads or tails? Flip a fair virtual coin and keep score.

Runs locally — files never leave your device

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How to use Flip a Coin

  1. 1Press Flip coin or tap the coin to toss it.
  2. 2Read the result — Heads or Tails — when the coin lands.
  3. 3Use Flip 10 times or Flip 100 times to run many tosses at once.
  4. 4Check the totals, percentages and current streak below the coin, and press Reset to start again.

Flip a coin online

A coin toss is the simplest way to make a fair decision between two options: who kicks off, who pays, which film to watch, or whether to say yes. When you don't have a coin in your pocket, this virtual coin does the same job — with a satisfying flip animation, a guaranteed fair result and a running tally of every toss.

Features

  • Fair 50/50 flips from a cryptographically secure random generator.
  • 3D flip animation — tap the coin or the button.
  • Flip 10 or 100 coins at once for experiments and probability lessons.
  • Statistics: total flips, heads and tails counts with percentages, and your current streak.
  • Recent results shown as a compact H/T sequence.
  • Reduced motion support for people who prefer less animation.

Coin toss traditions

Coin tosses decide kick-offs in football and the first possession in American football, which team bats first in cricket, and countless everyday disagreements. The custom is ancient: Romans played navia aut caput ("ship or head"), and in Britain the game was called "cross and pile". Today, the person who didn't flip usually calls heads or tails while the coin is in the air.

A quick probability lesson

Coin flips are a classic way to explore probability:

  • Law of large numbers — after 10 flips you might see 7 heads, but after 1,000 flips the share of heads will be very close to 50%.
  • Streaks are normal — in 100 flips, a run of at least six identical results is more likely than not.
  • Independence — the coin has no memory; the next flip is always 50/50.

Press Flip 100 times a few times and watch the percentages settle towards 50% while streaks still appear.

Related tools

Need more than two outcomes? Roll dice with the Dice Roller, pick from a list with Spin the Wheel, or draw any number with the Random Number Generator.

Frequently asked questions

Is this coin flip really 50/50?
Yes. Each flip uses your browser's cryptographically secure random number generator, which gives heads and tails exactly equal probability. Previous results have no influence on the next flip.
Is a real coin flip 50/50?
Almost. Research by statisticians, including a large 2023 experiment with over 350,000 flips, found that real coins land on the same side they started on slightly more often — around 51% of the time — because of how people flip them. A virtual coin has no such bias.
Why did I get heads five times in a row?
Streaks are normal in random sequences. The chance of five heads in a row is 1 in 32, so it happens regularly. In 100 flips, a run of six or seven identical results in a row is quite common. Try Flip 100 times and look at the longest streaks.
Is heads more likely after several tails?
No. Believing that is called the gambler's fallacy. Each flip is independent, so the chance is always 50% regardless of what came before.
Can I use this to settle a decision or start a game?
Yes — that's what it's for. Agree on who calls heads and who calls tails before flipping. For more than two options, use the Spin the Wheel tool instead.

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