Run 5 coin flips at once and see every result instantly. Tracks heads vs. tails tally, longest streak, and lets you copy the full sequence for quick decisions or classroom demos.
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Heads
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Tails
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Streaks this run
Longest heads streak: —
Longest tails streak: —
Reminder: each flip is independent. A streak of heads doesn't make the next flip more likely to be tails — the coin has no memory.
Session totals
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Five flips is one of the most useful small-sample probability experiments you can run. There are exactly 32 possible outcomes, each equally likely at 1/32, making the math clean and easy to verify by hand. The most common result is a 3/2 split — three heads and two tails, or two heads and three tails — each occurring about 31.25% of the time, which means combined they account for roughly 62.5% of all trials. Classroom teachers use 5-flip trials to introduce combinatorics and Pascal's triangle before scaling up to larger experiments. For quick decisions, a best-of-5 approach gives a decisive majority outcome without dragging out the process.
Streak tracker and the Gambler's Fallacy
After every flip, this tool calculates the longest consecutive heads streak and the longest consecutive tails streak in that run. When either streak reaches 5 — meaning all five flips landed the same way, a 1-in-32 event — a note appears reminding you of the Gambler's Fallacy. The Gambler's Fallacy is the common but mistaken belief that a long streak makes the opposite outcome "due." In reality, each flip is a completely independent 50/50 event. The coin has no memory of previous flips. A run of 5 heads does not increase the probability of tails on the next flip — it's still exactly 50%. Seeing this in a live tool makes the concept stick far better than reading about it.
Classroom and probability uses
Statistics teachers use repeated 5-flip trials to demonstrate binomial distributions in action. Because there are only 32 possible outcomes, students can map every result to Pascal's triangle row 5 and verify the theoretical probabilities against their experimental data. When the whole class pools their results, the combined percentage converges toward 50% — a live demonstration of the law of large numbers. The session stats panel accumulates totals across multiple runs so students can watch the percentage home in on 50% as the sample size grows. Copy-paste the sequence into a shared spreadsheet and each student contributes a row of real experimental data in seconds.
How to copy and export results
Click "Copy results" after any flip to copy the full sequence to your clipboard in a format ready to paste: for example, 5 flips: HHTTH — 3 heads, 2 tails. Paste it into Google Sheets, Excel, a homework document, or a chat message. For multi-run analysis, the session totals panel at the bottom of the tool keeps a running count of all heads and tails across every flip in your current session, along with the overall percentage — no manual tallying needed.
Frequently asked questions
What does "flip a coin 5 times" show about probability?
Flipping a coin 5 times is a compact probability demonstration. Each flip is an independent 50/50 event, so there are 32 possible outcomes in total — each with a 1/32 chance. The most common split is 3 heads / 2 tails or 2 heads / 3 tails, each occurring about 31.25% of the time. Run this tool repeatedly and watch the session percentage converge toward 50% as your sample size grows.
What is the most common heads/tails split in 5 flips?
The most common outcomes are a 3/2 split — either 3 heads and 2 tails, or 2 heads and 3 tails. Each of those splits happens about 31.25% of the time, so combined they account for roughly 62.5% of all 5-flip trials. An extreme result like all 5 heads or all 5 tails has only a 1-in-32 chance — rare, but entirely possible. Keep flipping and you'll eventually see it.
What is the Gambler's Fallacy?
The Gambler's Fallacy is the mistaken belief that past random events influence future ones. If you flip heads five times in a row, it can feel like tails is "due" — but each flip is completely independent. The coin has no memory. The probability of heads on the next flip is always exactly 50%, no matter what came before. This tool shows a reminder when a streak of 5 or more appears to illustrate this live.
Can I flip more than 5 times?
Yes. For 10 flips at once, try our Flip a Coin 10 Times tool. For 100 flips with full statistics, use Flip a Coin 100 Times. All tools are free and require no sign-up.
How do I export the results for my homework?
After flipping, click "Copy results" to copy the full sequence (e.g. 5 flips: HHTTH — 3 heads, 2 tails) to your clipboard. Paste it directly into a spreadsheet, document, or stats software. The session stats panel also shows cumulative totals across multiple runs so you can track your experiment without any manual counting.
Who uses this tool
Statistics students
Map 5-flip results to Pascal's triangle row 5 and verify theoretical probabilities against experimental data — the 32 possible outcomes make manual verification practical.
Teachers
Run a live classroom probability demo in seconds. Copy-paste sequences into a shared spreadsheet and have every student contribute a row of real experimental data to observe the law of large numbers.
Decision makers
Break ties with a best-of-5 approach when a single flip feels too arbitrary. The majority result (at least 3 out of 5) gives a clear, decisive outcome.
Game players
Use for multi-round fair outcomes — determining starting order, generating random binary sequences for tabletop events, or settling quick disputes with a majority-wins rule.