Flip a coin — once, 10 times, or 100 in a row
Tap to flip. The counter tracks every heads and tails for you.
Flip a coin online — once for a quick decision, or 100 times in a row to settle a debate, run a probability experiment, or break a stubborn tie. The heads/tails counter and 15-flip history strip make best-of-3 and best-of-5 calls effortless: no scrap paper, no tally marks, just tap and watch the score. Free, no sign-up, works on phones, tablets and classroom projectors.
How to Use
- Tap the coin graphic or click Flip Coin to flip.
- The result — Heads or Tails — appears immediately with a brief animation.
- Check the heads and tails counters to see your running totals.
- Scroll down to view your full flip history for the session.
- Use Reset Stats to clear the counters and start a fresh run.
Best Used For
- Deciding who goes first in a board game or card game
- Sports captains choosing ends or kick-off at the start of a match
- Breaking ties in classroom decisions or group votes
- Assigning random tasks or responsibilities between two people
- Quick date-night decisions when you genuinely can't agree
- Running extended probability experiments over many flips
Why Use Spinnit
Each flip uses your browser's random number function to choose heads or tails with even odds. The built-in history tracker lets you run extended sessions without keeping a tally by hand. No sign-up, works instantly on any device including mobile, and no data is stored.
Understanding 50/50 Odds
A fair coin has two possible outcomes, so each flip has a 50% chance of heads and a 50% chance of tails. That does not mean the results must alternate. Five heads in a row can happen, and the next flip is still 50/50 because each flip is independent.
Best-of-Three Decisions
For choices that feel too important for one flip, use a best-of-three or best-of-five rule. Decide what heads and tails mean first, then flip until one side has the majority. The history and counters make this easy to track without writing anything down.
Frequently Asked Questions
How do I flip a coin 100 times in a row?
Tap the coin (or press Space) repeatedly — the heads/tails counter tracks every flip and the history strip shows your last 15 results. Most users hit 100 flips in about a minute.
How does best-of-3 coin flip work?
Decide what heads and tails mean, then flip up to three times. The first side to win two flips wins. The heads/tails counter makes the running score obvious without writing anything down.
Is the flip truly 50/50?
Yes. Each flip is an independent random event with exactly a 50% chance of heads or tails, using your browser's built-in random function. Five heads in a row is normal and the sixth flip is still 50/50.
How likely is it to flip heads 5 times in a row?
1 in 32, or about 3.1%. The odds of any specific 5-flip sequence are (1/2)5. Over 100 flips you'll usually see at least one streak of 5 or more.
Can I flip multiple coins at once?
The coin flip tool flips one coin per tap. For multiple simultaneous results, try the Random Number Generator set to a range of 0–1.
Does this work on mobile?
Yes, all Spinnit tools are mobile-first and work on any device with no sign-up.