RandomEveryth.ing

Coin Flip

Flip a perfectly fair coin - one flip or a hundred.

Possible results with these settings: 2

This generator:

What this tool does

A virtual coin with exactly 50/50 odds - fairer than a physical coin, which real-world studies have shown carries a slight bias toward the side that starts face-up.

How the randomness works

Each flip draws from a cryptographically seeded generator with a provably equal chance of heads or tails. Flip several at once to settle multi-way questions or just to watch the law of large numbers do its thing.

Read more about fairness and receipts on RandomEveryth.ing.

When to use it

  • Settling any two-way decision instantly
  • Choosing who kicks off, deals, or goes first
  • Teaching probability with real experiments
  • Breaking ties of every kind

Frequently asked questions

Is this fairer than a real coin?
Slightly, yes. Research on physical coin flips found about a 51% bias toward the starting face. This coin is a true 50/50, verified by statistical tests.
Can I flip more than one coin?
Yes, up to 1,000 at once, with a running tally of heads and tails.