Free Online Coin Flip – Heads or Tails Generator
Flip a virtual coin any number of times and count heads and tails.
About the Coin Flip
What is the Coin Flip?
A coin flip simulates flipping a fair coin and tallies the heads and tails, showing the full sequence.
Why use this calculator?
Coins are the classic way to settle a decision fairly, and simulating many flips illustrates probability and the law of large numbers.
How to use it
- Enter how many flips you want.
- Read the heads and tails counts and the sequence.
Formula
Each flip has a 50% chance of heads and a 50% chance of tails, independent of every other flip.
Over many flips the proportions approach 50/50 but rarely land exactly even.
Frequently Asked Questions
Is the coin truly fair?
It uses an even random split, so each flip is 50/50 with no memory of previous flips.
Why are the counts not exactly equal?
Random variation means short runs are often uneven. The imbalance shrinks as the number of flips grows.
Can I print or share my result?
Yes. Use your browser's print function or screenshot the result. The page is designed to print cleanly.
What if my inputs are outside the typical range?
The calculators accept a wide range of values, but extreme inputs may produce unrealistic results. Double-check the units you are using.
How often is the calculator updated?
We review formulas and rates periodically to keep them aligned with current standards and published data.
Is this calculator free to use?
Yes. Every calculator on this site is completely free, with no hidden fees, no subscriptions and no limits on how many times you can use it.
How accurate are the results?
We use standard, widely accepted formulas and calculate in your browser using double-precision arithmetic. Results are rounded for readability, so treat them as reliable estimates rather than a guarantee. Real-world factors can vary the true figure.
Can I add this calculator to my own website?
Yes. Open this calculator page and use the "Add to your website" box in the sidebar to copy a ready-made iframe snippet, then paste it into any HTML page.
Does it work on a phone or tablet?
Yes. The layout is fully responsive, so it works on desktops, laptops, tablets and mobile phones, and every input adapts to touch screens.
Is the information I type kept private?
Yes. All calculations run locally in your browser. Nothing you enter is uploaded, stored or shared with anyone.