What it is
The break-even win rate calculator determines the exact percentage of winning trades you need to neither make nor lose money, based on the ratio between your average risk and average reward.
Why it matters
Risk and reward are inversely related to the required win rate. If your reward is twice your risk (1:2 ratio), you can afford to lose two-thirds of your trades and still break even.
Knowing this number helps you evaluate whether your strategy targets realistic price levels.
Why traders use it
Traders use it before entering positions to understand the minimum performance threshold their setup requires to be viable.
How important is it?
It grounds your expectations. If a strategy requires a 70% win rate with small targets, you must be certain your execution can consistently hit those targets.
Worked example
With default values risking $100 to win $200 (a 1:2 risk-reward ratio), the break-even win rate is 33.3% (100 / (100 + 200) * 100).
Common mistakes
- Forgetting to factor in spreads and broker commissions, which raise the real required win rate.
- Assuming a high risk-reward ratio is easy to achieve without considering market structure.
Frequently asked questions
What win rate do I need for a 1:1, 1:2, and 1:3 risk-reward ratio?
Before fees, a 1:1 ratio requires a 50% win rate, a 1:2 ratio requires 33.3%, and a 1:3 ratio requires 25% to break even.
How do spreads and commissions change my break-even win rate?
Broker fees reduce your net win and increase your net loss. You can enter your net reward (after subtracting round-trip commission) and net risk (including commission) into the calculator for an exact after-fee break-even rate.
How does risk-reward affect break-even win rate?
Higher reward relative to risk lowers the required win rate; lower reward increases it.
Related trading guides
Risk-Reward Ratio Explained With Examples
Understand the risk-reward ratio, the win rate you need to break even, and why a good ratio alone does not make a good trade.
How to Calculate Position Size, Step by Step
A simple four-step method to work out your lot size from your account balance, risk percentage and stop loss, with worked examples.
This page is for education only and is not financial advice. See our disclaimer.