Flip a single coin with animation, or simulate multiple flips instantly while the coin spins. Single flip history is shown below.
Flip Result
Heads
Tails
Click a button below
Flip Controls
Single Flip History (Last 20)
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Learn More About Coin Flips
Probability
A fair coin has two sides, Heads and Tails. When flipped, each side has an equal chance of landing face up. This means there's a 50% probability (or 1/2 chance) for Heads and a 50% probability for Tails on any single flip. However, over a small number of flips, the results can vary significantly from this average.
Learn more about probability.
Decision Making
Coin flipping is a common way to make a simple decision between two options or to determine possession in sports (like a kickoff). It's used because it's seen as a fair way to choose randomly when both outcomes are equally likely.
Read about coin flips in decision-making.
How This Tool Works
Computers can't flip physical coins. This tool uses a pseudo-random number generator (PRNG). It generates numbers that appear random, and we assign "Heads" to one range of numbers and "Tails" to another (e.g., numbers below 0.5 are Heads, 0.5 and above are Tails). While not truly random like a physical coin flip, PRNGs are designed to produce results that are statistically random enough for most purposes.