Flip a Coin — Heads or Tails
Flip a virtual coin for heads or tails. Also calculate the probability of getting a specific sequence of flips.
The Mathematics of Coin Flipping
A fair coin has exactly a 50% chance of heads and 50% tails on each flip. But probability and streaks are counterintuitive: the chance of getting 10 heads in a row is (1/2)¹⁰ = 0.098% (about 1 in 1,024). Each flip is independent — the coin has no memory. After 9 heads in a row, the next flip is still exactly 50/50. The "gambler fallacy" is believing that tails is "due" — it is not.
Using Coin Flips for Decisions
Research suggests that coin flipping actually helps with decisions — not because of the random result, but because of your reaction to it. A University of Chicago study found that people who were told to "go for it" by a coin flip were happier 6 months later than those told to maintain the status quo. The insight: if you are disappointed by the coin result, you already know what you want.
Coin flip is searched 80K+ times per month. Users come for the instant flip, but the probability calculator and sequence analysis keep them engaged. The page has excellent session metrics because users flip multiple times, increasing ad impressions.
