One toss, a series, or best of several
A coin flip answers a two-way question, and this one answers it in three different shapes. A single toss gives you heads or tails. A series runs a fixed number of tosses and counts both sides. A best-of contest stops the moment one side has won a majority.
That third mode is the one people usually want when they say best of five: it does not need all five tosses, because three heads settles it. The tool stops there rather than padding out the remaining flips.
Each toss is independent and drawn from the browser's cryptographic random source, so heads and tails stay at even odds no matter what came before.
Flip a coin in three steps
Pick the mode first, because it changes what the other settings mean.
Choose single, series or best-of, and assign a side to each choice before you toss.
Set the number of tosses if you picked series or best-of.
Flip, then read the side counts and the winning side — or a tie, which a series can produce.
Modes, counts and presentation
The controls cover both settling a decision and running a small experiment.
- Three modes: a single toss, a fixed series, and a best-of contest
- Up to 100 tosses in one run
- Heads and tails counts alongside the full sequence of results
- A declared winner, or an explicit tie when a series ends level
- Hidden reveal, which holds the outcome until you uncover it
- Three coin appearances, plus optional sound and haptic feedback
- A share link so both sides of a decision see the same toss
Kick-offs, tie-breaks and classroom experiments
Two-way decisions and small probability demonstrations.
Two friends settle who chooses the film, each taking a side before the toss.
A five-a-side match decides kick-off with a single flip on a shared screen.
A class flips 100 times and compares the heads count against the expected fifty.
A pair runs best of five so one unlucky toss does not decide a whole evening.
A remote team picks between two options with a shared link, so neither side flips privately.
A parent settles who sits in the front seat, with hidden reveal to draw it out.
How a series differs from best-of
A series always completes the number of tosses you asked for. Ten tosses means ten results, and an even count can finish level — which is why a series reports a tie as a genuine outcome rather than flipping again.
Best-of stops early. It runs until one side reaches a majority of the requested tosses, so best of five ends at three heads even though two tosses remain unused. Because a majority must exist, best-of works with an odd number of tosses; a series has no such requirement.
Neither mode changes the odds of an individual toss. A run of six heads is roughly a 1-in-64 event, not a sign that tails is overdue.
What a coin cannot decide
A coin handles exactly two options. Three choices need a wheel or a draw, not a coin and a tie-break rule.
This is not a gambling or betting instrument and keeps no certified record of tosses.
A tie in an even-numbered series is a real result. Decide in advance what you will do about it, rather than rerunning until you like the answer.
Making a toss stick
- Assign heads and tails to the two choices out loud before flipping — after the result it is too late to argue about which side meant what.
- Use best-of with an odd count when a single toss feels too harsh, and a series when you actually want the counts.
- Turn on hidden reveal in front of an audience so the result lands as a moment rather than a flicker.
- Share a link for remote decisions instead of one person flipping and reporting the outcome.
Coin toss questions
How is a series different from best-of?
A series completes every toss you requested and can end in a tie. Best-of stops as soon as one side has a majority, so best of five can finish after three tosses.
How many times can I flip at once?
Up to 100 tosses in a single run. The result shows the full sequence along with the heads and tails counts.
Can the result be a tie?
In a series with an even number of tosses, yes, and the tool reports it as a tie rather than forcing a winner. Best-of cannot tie, because it runs until one side takes a majority.
Are heads and tails equally likely?
Yes. Each toss is an independent draw from the browser's cryptographic random source, at even odds, with no bias toward either side.
Six heads in a row — is tails now more likely?
No. Every toss is independent, so the next one is still 50/50. Six heads in a row is about a 1-in-64 run, which is uncommon rather than impossible.
Can I hide the result before showing it?
Yes. Hidden reveal holds the outcome until you uncover it, which is useful when a group is watching the decision happen.
Can I use a coin flip for three options?
Not cleanly. A coin has two sides, so three or more choices are better served by a wheel or a name draw than by a coin plus a tie-break rule.
Do I need an account to flip?
No. Flipping needs no sign-in. An account only matters for shared sessions where other people follow the results.