This free breakeven calculator shows the winning-trade percentage you need before a trading approach stops losing money. Enter a reward-to-risk ratio and the tool returns the breakeven percentage. Enter your winning percentage instead and it returns the ratio you need. Add your spread, commission, stop, and target, and it shows how trading costs raise the bar. Everything runs in your browser. Nothing is sent anywhere. Below the tool you will find the full math, a worked example, a reference table, and an honest note on what this number cannot tell you.
Breakeven Calculator
A trade that risks 20 pips to target 40 pips is a 1:2 trade. Enter 2.
Use your measured percentage of winning trades over the last 50 to 100 trades.
How to use the breakeven calculator
The tool answers two mirror questions. Given a reward-to-risk ratio, what winning percentage breaks even? Given a winning percentage, what ratio breaks even? Work through it in four steps.
- Enter your reward-to-risk ratio in the first field. A setup that risks 20 pips to target 40 pips is a 1:2 trade, so enter 2. The tool returns the winning percentage where wins and losses cancel out.
- Enter your winning-trade percentage in the second field. The tool returns the ratio you need at that percentage. Use measured results from your journal, not a hopeful guess.
- Optional: fill in the cost fields. Enter your average spread plus commission in pips, your stop distance, and your target distance. The tool then shows the cost-adjusted breakeven percentage, which is always higher than the clean one.
- Press Calculate. Compare the breakeven number with your actual results. The gap between them is either your edge or your problem.
Not sure what ratio your setups produce? Measure a planned trade first with the risk-reward calculator, then bring the ratio here. The two tools are built to work as a pair.
A worked example: 1:2 trades with and without costs
Say every trade risks one unit to make two. That is a 1:2 ratio, so R equals 2. The breakeven winning percentage is 100 divided by (1 + 2), which is 33.3%. Win one trade in three and you sit exactly at zero. Beat that rate and the account grows. Fall short and it shrinks. Simple arithmetic, no forecasting involved.
Now add real conditions. Your stop sits 20 pips away and your target 40 pips away. Spread and commission together cost 1.5 pips per trade. A losing trade now costs 21.5 pips, because you pay costs on top of the stop. A winning trade only nets 38.5 pips, because costs come out of the target. The adjusted breakeven is 100 × 21.5 / (21.5 + 38.5), which is 35.8%.
Look at what happened. The chart setup did not change. The broker fee looks tiny. Yet the bar moved from 33.3% to 35.8%, a jump of two and a half points. You now need roughly one extra winning trade in every forty just to stand still. To see what that difference means in money terms, run the same trade through the forex profit calculator.
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The math behind the breakeven percentage
The formula is short enough to derive in a paragraph. Call your reward-to-risk ratio R. Every losing trade costs one unit of risk. Every winning trade pays R units. Suppose you take 100 trades and win p percent of them. Your wins collect p × R units. Your losses give back (100 − p) × 1 units. Breakeven is the point where the two piles match: p × R = 100 − p.
Solve for p. Add p to both sides to get p × R + p = 100. Factor out p to get p × (1 + R) = 100. Divide through and you have p = 100 / (1 + R). As a fraction, the breakeven point is 1 / (1 + R). That is the whole formula. Plug in R = 2 and you get 100 / 3, or 33.3%.
The reverse direction follows from the same line. If you know your winning percentage p, rearrange to R = (100 − p) / p. A trader who wins 40% of the time needs (100 − 40) / 40, which is a 1:1.5 ratio, just to break even. Anything below that ratio loses money over time at that winning percentage. The arithmetic does not care how good the entries feel.
Why trading costs quietly raise the bar
Spread and commission act like a toll booth on both sides of every trade. They make each loss slightly bigger and each win slightly smaller. In the adjusted formula, effective risk becomes stop + costs, and effective reward becomes target − costs. The breakeven percentage becomes 100 × (stop + costs) / ((stop + costs) + (target − costs)). Costs never cancel out. They always push the breakeven number up.
The damage scales with trade size, and short-term trading suffers most. A 1.5-pip cost barely dents a 100-pip swing target. The same 1.5 pips against a 5-pip scalping target eats 30% of the reward before price moves at all. This is why cost math should sit at the center of any fast strategy. Our best scalping indicators for MT4 guide covers tools for that style, and the cost fields above show exactly what your broker conditions do to the numbers.
Costs also interact with position size. A wider stop lowers your lot size for the same risk amount, which changes the cash value of each pip paid in costs. Size the trade first with the position size calculator, then check the cost-adjusted breakeven here with the same stop and target.
Breakeven percentages at a glance
The table below lists common ratios and the winning percentage each one needs, before costs. Keep it next to your journal and compare it against your measured results.
| Reward-to-risk ratio | R value | Breakeven winning percentage |
|---|---|---|
| 1 : 0.5 | 0.5 | 66.7% |
| 1 : 1 | 1 | 50.0% |
| 1 : 1.5 | 1.5 | 40.0% |
| 1 : 2 | 2 | 33.3% |
| 1 : 3 | 3 | 25.0% |
| 1 : 5 | 5 | 16.7% |
Read the table both ways. Taking 1:0.5 trades means two out of three must win before you keep a cent. Taking 1:3 trades means three losers out of four still leaves you at zero. Neither profile is better on its own. The only question is which breakeven bar your real winning percentage can clear, after costs.
One more habit worth building: sample size. Treat 50 trades as the bare minimum before you trust a winning percentage, and 100 as a sensible working sample. Small samples swing wildly, so five wins in ten trades tells you almost nothing. Keep one sample per strategy and per market, since a scalping setup and a swing setup rarely share the same numbers. Then check the measured figure against the table row for your ratio.
Breakeven percentage vs moving your stop to breakeven
Traders use the word breakeven in two different ways, and mixing them up causes confusion. The first meaning is the one this page computes: the winning percentage where a whole series of trades sums to zero. It describes a strategy, not a single position. It comes from the ratio and nothing else.
The second meaning is a trade-management action. Price moves in your favor, so you drag the stop to your entry and call the trade "at breakeven". That single position can no longer lose more than costs. Useful, but it is not free. Every stop moved to entry gets tagged more often, which converts some would-be winners into scratches. Fewer full wins means your average reward shrinks, your effective ratio drops, and the breakeven percentage from the formula above quietly rises.
So the two meanings pull on each other. If you like moving stops early, rerun this calculator with your real average win, not the planned target. Journals usually show the honest ratio sits well below the chart plan. Test the habit on a demo account and let the recorded numbers decide whether it earns its place.
What the breakeven number does not tell you
Breakeven is a floor, not a target. Clearing it by a hair means you work for free. A useful strategy needs a margin above the bar, and that margin has a name: expectancy. The expectancy calculator combines your winning percentage, average win, and average loss into an expected value per trade. Run it once your sample is large enough to trust.
The number also says nothing about the path between here and there. A 40% winning percentage allows brutal losing streaks, and those streaks arrive in clusters. Ten straight losses at a sound ratio is normal variance, not a broken system. The drawdown calculator shows what those streaks do to an account, and the Kelly criterion calculator shows why bet size must respect them.
Finally, breakeven math assumes your inputs are stable. Real winning percentages drift with market conditions, and real ratios drift when trades get cut early. Measure both from live or demo records over at least 50 trades, the same standard set out in our Editorial and Testing Policy. The calculator is arithmetic. The honesty of the inputs is on you.
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FAQ
What is a good winning percentage for a forex trader?
There is no universal number. It only means something next to the ratio. A trend follower winning 35% at 1:3 sits ahead of the bar. A scalper winning 60% at 1:0.5 sits below it. Judge the pair together, never the percentage alone.
Is a higher winning percentage always better?
No. Pushing the percentage up usually means taking profits earlier, which shrinks the ratio and raises the breakeven bar at the same time. The two numbers trade off against each other. What matters is the gap between your measured percentage and the breakeven percentage for your actual ratio.
Should I include swap and slippage in the costs field?
Yes, if they apply to your style. Convert average slippage to pips and add it to the spread-plus-commission figure. Holding overnight? Estimate swap per trade in pips and include it too. Every cost works the same way: it widens the effective stop and trims the effective target.
Can I clear the breakeven percentage and still lose money?
Yes. The formula assumes a fixed ratio on every trade, and live trading rarely delivers that. Moved stops, early exits, and missed fills bend the real numbers away from the plan. Track your actual averages and treat the output as arithmetic, not a promise. Results are not guaranteed; past performance is not indicative of future results.
Related tools: atr position size calculator, risk of ruin calculator and portfolio heat calculator, plus the full free forex tools directory.
External references
Break-even point at Investopedia · Break-even in economics on Wikipedia