Flip a Coin
Toss a coin online and get heads or tails. Click the coin to flip it, keep count of your results and streaks, or flip up to 10,000 coins at once. Everything runs in your browser.
Click the coin or the button to flip
- Heads
- 0 0%
- Tails
- 0 0%
- Current streak
- None yet
- Longest streak
- None yet
Flip many coins at once
Flip up to 10,000 coins in one go and see the totals.
Coin photo: 1888 British penny by Петров Эдуард, Wikimedia Commons, public domain (CC0).
What the coin flip does
It works like tossing a real coin. The coin goes up, spins end over end, and lands on heads or tails. The coin is a photo of a real British penny from 1888, with Queen Victoria on heads and Britannia on tails.
The result is not decided by the animation. Each flip takes one random bit from your browser's secure random number generator, so heads and tails are always an even 50/50 and no flip depends on the one before.
Why use our coin flip
- ·Fair. An exact 50/50 chance on every flip, with no bias from how the coin is thrown.
- ·Realistic toss. A 3D coin with real thickness that flips, lands, and bounces.
- ·Tally and streaks. See your heads and tails count, percentages, and longest streak.
- ·Many coins at once. Flip up to 10,000 coins in one click.
- ·Free. No signup, no paywall, no limits.
How to flip a coin online
- 1
Flip the coin
Click the coin or the Flip coin button. You can also press Tab to reach the coin and flip it with Enter or Space.
- 2
Read the result
The coin is tossed into the air, spins, and lands on heads or tails. The result is written under the coin once it lands.
- 3
Track your flips
The tally counts heads and tails with percentages, shows your current and longest streak, and lists your last 100 flips. Use the reset button to start the count again.
- 4
Flip many coins at once
To flip 10, 100, or up to 10,000 coins in one go, enter the number under Flip many coins at once and click the button. Copy the results as a row of H and T letters.
Is a coin flip really 50/50?
A real coin comes very close, but not quite. A 2007 study by Persi Diaconis, Susan Holmes, and Richard Montgomery found that a tossed coin tends to land on the side it started on slightly more often, about 51% of the time. A 2023 study that recorded 350,757 hand flips found the same effect, with coins landing on their starting side about 50.8% of the time.
That small edge comes from how a hand throws a coin, so it does not apply here. This coin flip picks the result from a random bit before the animation starts, which makes heads and tails exactly equal every time.
Coin flip streaks: how often the same side comes up in a row
Long runs of heads or tails feel suspicious, but they are normal. The chance of heads 5 times in a row is 1 in 32, and 10 times in a row is 1 in 1,024. Over many flips, a long run somewhere is almost certain. This table shows the chance of a run of the same side in 100 flips:
| Same side in a row | Chance in 100 flips |
|---|---|
| 5 or more | 97% |
| 6 or more | 81% |
| 7 or more | 54% |
| 8 or more | 32% |
| 10 or more | 9% |
Getting exactly 50 heads in 100 flips is less likely than most people think, only about 8%. What does settle down is the share: the more coins you flip, the closer the percentage of heads gets to 50%. Try it with Flip many coins at once.
Heads or tails: which side of a coin is which
Heads is the side that shows a person's head. Collectors call it the obverse. On British coins it carries the portrait of the monarch, and on most US coins it shows a president, such as Lincoln on the penny or Washington on the quarter.
Tails is the other side, called the reverse. It usually shows a symbol, a building, or a design, such as a crown, a shield, or an animal. The coin on this page is an 1888 British penny. Heads shows Queen Victoria in the portrait known as the bun head, and tails shows Britannia seated with her shield and trident, a lighthouse on one side and a ship on the other.
When to use a coin toss
- ·Making a decision. Give one option to heads and the other to tails when you are stuck between two choices, like which restaurant to try or who drives.
- ·Sports and games. Decide which team kicks off in football, who bats or bowls first in cricket, or who goes first in a board game.
- ·Settling a disagreement. A coin toss is a fair way to break a tie, because neither person can control the result.
- ·Teaching probability. Flip 100 or 1,000 coins at once to show a class how the share of heads gets close to 50% as the number of flips grows, while streaks still happen.
Frequently asked questions
- How do I flip a coin online?
- Click the coin or the Flip coin button on this page. The coin is tossed, spins, and lands on heads or tails, and the result is shown under it. Click again to flip again.
- Is this online coin flip fair?
- Yes. Each flip uses one random bit from your browser's secure random number generator, crypto.getRandomValues(), so heads and tails each have exactly a 50% chance. The result is picked before the animation starts, so the side that was showing before the toss has no effect.
- Why did I get heads 5 times in a row?
- Streaks are a normal part of random flips. The chance of 5 heads in a row is 1 in 32, and in 100 flips there is about a 97% chance of a run of 5 or more of the same side somewhere. A long streak does not mean the coin is broken.
- After several heads, is tails more likely?
- No. Each flip is independent, so the chance of tails is still 50% no matter what came before. Expecting tails to be due is a common mistake known as the gambler's fallacy.
- Is a real coin flip 50/50?
- Very close, but not exactly. In a 2023 study that recorded 350,757 flips by hand, coins landed on the same side they started on about 50.8% of the time. Flipping the coin on this page has no such bias.
- Which side of a coin is heads?
- Heads is the side with a person's head on it. On British coins it is the side with the monarch's portrait, and on US coins it is usually the side with a president's portrait. The other side is tails. On the coin here, an 1888 British penny, heads shows Queen Victoria and tails shows Britannia.
- How do I flip a coin 100 times?
- Enter 100 under Flip many coins at once and click the button. You get the number of heads and tails, the percentages, the longest streak, and the full list of results as H and T letters that you can copy.
- Can I flip a coin without the animation?
- Yes. If your device is set to reduce motion, the coin turns straight to the result without the toss. Flipping many coins at once also shows results right away.
- Are my flips saved?
- No. Everything runs in your browser and nothing is uploaded. Your tally and history are cleared when you reload or close the page.