A binary option risks the whole stake to win a share of it. This calculator turns a stake and a payout percentage into the numbers that matter before you place a trade: the profit on a win, the loss on a loss and the win rate you need just to break even. It runs in your browser and stores nothing.
Payout Calculator
Break-even win rate = 1 ÷ (1 + payout as a decimal). It ignores deposit, withdrawal and other fees.
How to Use This Calculator
- Enter the stake you would risk on one trade.
- Enter the payout your platform quotes for that asset and expiry, as a percentage of the stake.
- Read the break-even win rate. Your real win rate over a large sample has to beat it before costs.
The Maths Behind It
The break-even win rate is 1 divided by (1 plus the payout as a decimal). With a payout of 80% (0.80) that is 1 ÷ 1.80, or about 55.6%. With 85% it is about 54.1%. The lower the payout, the higher the hurdle. The calculator ignores deposit, withdrawal and other fees, which raise the true hurdle.
Limits
This tool uses only the figures you enter. It does not know your broker, your fees or your market, and its output is not advice or a prediction. Test any strategy on a demo account first, and read your platform's own terms.
Frequently Asked Questions
Why is the break-even win rate above 50%?
Because a loss costs the full stake while a win pays less than the stake, you need to win more than half of your trades just to come out level.
Does the calculator know my broker's payout?
No. Enter the payout shown on your own platform, because it can change with the asset, expiry and time.
Is the result a prediction?
No. It is arithmetic on the numbers you type in.