Utinzo

Coin Flip

Flip a virtual coin — heads or tails. Flip multiple times and see statistics.

Result
Heads
Heads1 (100.0%)
Tails0 (0.0%)

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How to use this calculator

  1. 1

    Set the number of flips (1 for a single flip, more for a series).

  2. 2

    Click Calculate — a new flip is generated each time.

  3. 3

    For multiple flips, the heads/tails counts and percentages are shown.

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Frequently asked questions

Is a coin flip truly 50/50?

In theory, yes. In practice, a real physical coin has a very slight bias (~51/49) toward the side that starts face up when flipped. This virtual coin uses a perfect 50/50 probability.

Why doesn't 10 flips always give 5 heads and 5 tails?

Each flip is independent with 50% probability. Over a small number of flips, variance is high. As the number of flips increases, the ratio converges toward 50/50 (law of large numbers).

About coin flip

Virtual coin flip for quick decisions

When to use a coin flip

Settling a dispute fairly. Choosing who goes first in a game. Making a binary decision when you are truly undecided. Sports: choosing ends and kick-off. Flipping multiple times shows the law of large numbers in action — more flips → closer to 50%.

Coin Flip – Utinzo

Learn more from an authoritative source:

Wikipedia
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →