Coin Flip
Flip a virtual coin — one flip at a time or up to 1000 at once. Heads and tails tallies, percentages, and streak tracking, with fair 50/50 odds from your browser's random number generator.
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Flip many at once
Every flip uses Math.random with an exact 50% chance of heads and 50% chance of tails — no flip is influenced by the ones before it.
Frequently Asked Questions
- How do I flip a coin online?
- Click the Flip Coin button. The coin animates and lands on heads or tails, and the result is added to your running tally. Every flip is decided the instant you click.
- Is the coin flip really 50/50?
- Yes. Each flip calls your browser's built-in random number generator with an exact 50% chance of heads and 50% chance of tails. No flip is influenced by previous results.
- Can I flip many coins at once?
- Yes. Enter a number up to 1000 and click Flip Many. You get the heads and tails counts and percentages for that batch, and the results are added to your running totals.
- What does the longest streak show?
- It tracks the longest unbroken run of the same side across all your flips in this session. Long streaks look surprising but are expected in genuinely random sequences.
- Why do my percentages differ from exactly 50%?
- Random variation. Small samples routinely drift away from 50/50 — flip a coin ten times and 7-3 splits are common. As the number of flips grows, the percentages converge toward 50%. This is the law of large numbers in action.