How to flip a coin online
- The coin is flipped as soon as the page opens.
- Click Flip again, or press Space or Enter, for another flip. The count under the coin keeps track of heads and tails since you opened the page.
- To flip many coins at once, raise Flips. Up to 30 coins are drawn; beyond that you get the list and the totals.
Making a decision with a coin
A coin flip is the simplest fair way to settle a choice between two options: who goes first, which film to watch, who pays. Say which side means which option before you flip. A useful trick: if you feel disappointed by the result, you’ve learned which option you actually wanted.
Flipping many coins
Raising the number of flips is a quick way to see probability at work. With 10 flips, 7 heads and 3 tails is common. With 10,000, the split almost always lands within about 1% of 50/50. That’s the law of large numbers, and it’s a nice classroom demonstration.