AbraCalc

Coin Flip Simulator

Flip 1–100 virtual coins and see the total heads and tails count. Great for probability experiments. Free, instant.

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How to use this tool

  1. Enter how many coins to flip.
  2. Click Calculate to run the simulation.
  3. Read the Heads and Tails counts, and the H/T sequence.
  4. Click again to flip a fresh batch.

Simulate flipping a fair coin up to 100 times. The results show the heads/tails count and the full sequence — useful for probability experiments, classroom demos, or just making quick decisions.

Frequently asked questions

Is the coin fair?
Yes — each flip independently has exactly a 50% chance of heads.
Why do I sometimes get very uneven results?
Random variation is normal. Over many flips the ratio converges to 50/50 (Law of Large Numbers), but individual runs can deviate.
Can I use this to decide something?
Absolutely — flip once and let Heads = Yes, Tails = No.