Risk to Reward Ratio Calculator — User Guide & Reference
The risk-to-reward ratio compares how much you stand to lose on a trade with how much you stand to gain. This guide explains the formula, the breakeven win rate it implies, and how to use the ratio together with your win rate, then walks a worked example.
Disclaimer: This guide is provided for education only and does not constitute investment advice.
What R:R actually measures
Risk-to-reward is the distance from entry to target divided by the distance from entry to stop. A 1:2 trade risks one unit for two units of reward. The ratio sets the breakeven bar: a 1:2 trade breaks even at a 33% win rate, a 1:3 at 25%. The higher the ratio, the fewer wins you need.
Why R:R alone is not a signal
A high ratio only matters if the target is realistically reachable. A 1:10 target that is almost never hit is worthless. The ratio must be judged together with your actual win rate — a modest ratio with a high hit rate can be more profitable than a spectacular ratio with a low one.
How to calculate it from three prices
Subtract your stop from your entry for the risk, and your target from your entry for the reward, then divide reward by risk. The calculator does this and also shows the breakeven win rate — the hit rate that exactly offsets your average loss.
How to use the calculator
Enter entry, stop, and target prices. Read the ratio and the breakeven win rate. Compare the breakeven rate with what you historically achieve: if a setup needs a higher win rate than you are able to achieve, the math says the trade is not for you yet.
Worked example: a 1:3 setup
You are long at $100 with a stop at $95 and a target at $115. Risk is $5 and reward is $15, so the trade is a 1:3 setup. The breakeven win rate is 25% — you only need to win one trade in four to stay at zero. If your real win rate on similar setups is 40%, the trade is comfortably profitable on average.
How the breakeven win rate works
Breakeven win rate = 1 divided by (R:R + 1). A 1:1 trade breaks even at 50%, a 1:2 at 33%, a 1:5 at about 17%. The breakeven rate is the reality check: if it is higher than your historical win rate, the setup does not pay.
Common mistakes
The most common mistake is picking an unrealistic target just to make the ratio look good. Another is judging a trade by R:R alone without the win rate — the two only make sense together. And using the ratio after the trade to justify a bad decision is a form of self-deception.
Parameters explained
| Parameter | What it means |
|---|---|
| Entry price | The price where the position is opened. |
| Stop loss price | The price where you exit to limit the loss — defines the risk distance. |
| Take profit price | The price where you exit to lock in the gain — defines the reward distance. |
Key concepts
Risk
The distance between entry and stop, measured in price or dollars.
Reward
The distance between entry and target, measured the same way.
Breakeven win rate
The win rate needed to break even at a given R:R — lower required win rate means more room for losses.
Mistakes traders make
✗ Picking an unrealistic target just to make the R:R look good
✓A 1:10 target that is never reached is worthless. The ratio is only as good as the price levels behind it, so both must be structurally plausible.
✗ Judging a trade by R:R alone without the win rate
✓R:R sets the breakeven bar; your actual win rate decides whether you clear it. The two numbers only make sense together.
✗ Using the ratio after the trade to justify a bad decision
✓R:R is a planning tool. Once the trade is on, manage it by your rules, not by recalculating a prettier ratio to feel better about holding.
When this tool fits — and when it does not
Use it when
- ✓Before entry, as a quick filter for whether a setup's payoff is worth the risk.
- ✓When comparing several candidate setups to see which has the most favorable math.
- ✓When journaling trades, to understand whether your wins are large enough relative to losses.
Skip it when
- ✗Forcing every trade into a fixed minimum ratio that rejects good, high-probability setups.
- ✗Trading a ratio on its own without a defined stop and target on the chart.
- ✗Using it as a hard rule on trades where structure suggests a natural, nearer target.
Practical tips that actually help
Let structure set both prices, then compute the ratio
Measure the ratio last. If you pick the ratio first and force prices to fit, you are fitting the market to your rule instead of the rule to the market.
Track your actual R, not the planned R
Slippage and partial fills change the realized ratio. Over time, your real average R across trades matters far more than any single planned number.
Use the breakeven rate as a reality check
If a setup's breakeven win rate is higher than what you historically achieve, the math says the trade is not for you yet.
Related & next steps
Frequently asked questions
What R:R is good?▾
There is no universal answer. A higher ratio tolerates a lower win rate, but the ratio must fit the strategy and what the market actually offers.
Is a high R:R always better?▾
Not in isolation — a very high target may rarely be reached, reducing win rate. R:R must be judged together with win rate.
How do I calculate R:R from three prices?▾
Subtract your stop from your entry for the risk, and your target from your entry for the reward, then divide reward by risk.
What does the breakeven win rate tell me?▾
It is the win rate that exactly offsets your average loss. For a 1:2 trade it is roughly 33%, meaning you can lose twice as often as you win and still break even.
Why do real trades rarely hit the exact planned ratio?▾
Slippage, spread, and partial fills move your effective entry, stop, and exit from the planned prices. The ratio you plan is a proxy; the ratio you get is what matters.
Should I reject every trade below a fixed ratio?▾
A fixed minimum is a common filter, but it can reject good trades that have a nearby, well-placed target. Treat the ratio as one input alongside the win rate and the context.
How does R:R relate to expectancy?▾
Expectancy combines the ratio with the win rate: expectancy = win rate times average win minus loss rate times average loss. R:R sets the payoff; the win rate sets how often you get it.
- Type
- User guide
- Updated
- 2026-09
- Source
- SoloTrade.io educational content
Risk-to-reward is an educational planning metric, not a prediction of outcomes. Real fills and slippage change the effective numbers.