CalcVind

Coin Toss

Flip a coin online — heads or tails

Flip a Coin

?

Ready

Each flip is a fair 50/50, made with your browser's secure random generator.

Your Flips

0
Heads
0%
0
Tails
0%
0
Streak
—

Flip many coins at once

  1. 1
    Press Flip
    One tap tosses the coin
  2. 2
    See heads or tails
    A fair 50/50 every time
  3. 3
    Track your flips
    Counts, percentages and streaks

What are the odds?

A fair coin lands heads or tails with equal chance, and every flip is independent of the ones before it.

P(heads) = P(tails) = 1 ÷ 2 = 50%

P(n heads in a row) = (1 ÷ 2)ⁿ

Streaks happen more than you'd think

In 100 flips it's normal to see a run of 6 or 7 heads or tails in a row. Past flips don't change the next one: after five heads, the chance of heads is still 50%.

Flipping many coins

Flip 10 coins and you might get 7 heads. Flip 10,000 and the share of heads will be very close to 50%. This is the law of large numbers.

Related calculators

Frequently asked questions

Is this coin toss fair?

Yes. Each flip uses your browser's cryptographic random generator, giving an exact 50/50 chance.

Can I use it for a cricket toss?

Yes. Let one captain call heads or tails, then flip.

Does a streak make the other side more likely?

No. Each flip is independent, so the odds are always 50/50.

Last reviewed: October 2026