Risk Reward Ratio Calculator

Quantifying Trade Quality Before You Enter

Every trade is a bet with defined outcomes: you either hit your target or get stopped out. The risk-reward ratio quantifies this bet by comparing what you stand to lose against what you stand to gain. A trade risking $100 to make $300 has fundamentally different mathematics than one risking $100 to make $50, regardless of how confident you feel about either.

The Risk Reward Ratio Calculator analyzes your trade setup, computing the ratio from your entry, stop loss, and target prices. It shows the breakeven win rate required for profitability, expected value at various win rates, and comparison across multiple R:R targets. This analysis ensures you take trades where the math works in your favor.

How It Works

Basic Risk Reward Calculation

The risk-reward ratio compares the distance to your stop versus the distance to your target:

For Long Positions:

Risk = Entry Price - Stop Loss Price
Reward = Target Price - Entry Price
R:R Ratio = Reward / Risk

For Short Positions:

Risk = Stop Loss Price - Entry Price
Reward = Entry Price - Target Price
R:R Ratio = Reward / Risk

A 1:2 ratio means your potential reward is twice your potential risk. A 1:3 ratio means reward is three times risk.

Breakeven Win Rate

Every R:R ratio has a corresponding win rate needed to break even:

Breakeven Win Rate = 1 / (1 + R:R Ratio)

Higher R:R ratios require lower win rates to be profitable. This is why many traders insist on minimum 1:2 ratios, as it allows profitability even with a sub-50% win rate.

Expected Value Calculation

Expected value (EV) combines win rate and R:R to predict average outcome per trade:

Expected Value = (Win Rate x Reward) - (Loss Rate x Risk)

Positive EV means the trade is profitable over many repetitions. Negative EV means you lose money over time regardless of any single trade's outcome.

How to Use This Calculator

1. Select trade direction: Choose Long if buying (profit from price increase) or Short if selling (profit from price decrease).

2. Enter your prices:

   • Entry Price: Where you will buy or sell
   • Stop Loss: Where you will exit to limit losses
   • Target Price: Where you will take profits

3. Enter position size: Number of shares or contracts. This converts ratios to actual dollar amounts.

4. Adjust estimated win rate: Based on your strategy's historical performance or your assessment of this setup's probability.

5. Analyze the results: Review R:R ratio, breakeven requirements, and expected value. Compare multiple target scenarios.

Understanding the Results

Risk Reward Ratio Display

The primary result shows your R:R ratio (e.g., 1:2.5). The calculator color-codes this:

• Green: Ratio of 2 or higher (favorable risk-adjusted setup)
• Gold/Amber: Ratio between 1 and 2 (acceptable but not ideal)
• Red: Ratio below 1 (risking more than potential gain)

Dollar Risk and Reward

Beyond ratios, see the actual dollars at stake:

• Risk (Loss): What you lose if stopped out
• Reward (Profit): What you gain if target is hit

These numbers make abstract ratios concrete and emotionally real.

Breakeven Win Rate

The minimum win rate needed for the trade to be profitable over time. If your strategy's historical win rate exceeds this number, the trade has positive expected value.

Expected Value

Based on your estimated win rate, the calculator projects average profit or loss per trade. Positive EV (green) indicates a profitable setup; negative EV (red) suggests the trade should be skipped or restructured.

R:R Multiple Analysis Table

The table shows outcomes at various R:R ratios (1:1 through 1:4), displaying:

• Target price for each ratio
• Dollar reward at each target
• Breakeven win rate required
• Expected value given your win rate estimate

This helps identify optimal targets and understand trade-offs between probability and profit potential.

Practical Examples

Example 1: Day Trade Long Position

A trader spots a breakout pattern:

• Direction: Long
• Entry: $150.00
• Stop Loss: $147.00 (below breakout level)
• Target: $159.00 (previous resistance)
• Position: 100 shares

Analysis:

• Risk: $3.00 per share ($300 total)
• Reward: $9.00 per share ($900 total)
• R:R Ratio: 1:3
• Breakeven Win Rate: 25%
• At 50% win rate: EV = +$300 per trade

This is an excellent setup. Even winning only 1 in 3 trades produces profit.

Example 2: Swing Trade with Tight Target

A cautious trader takes a conservative setup:

• Direction: Long
• Entry: $50.00
• Stop Loss: $47.00
• Target: $53.00
• Position: 200 shares

Analysis:

• Risk: $3.00 per share ($600 total)
• Reward: $3.00 per share ($600 total)
• R:R Ratio: 1:1
• Breakeven Win Rate: 50%
• At 60% win rate: EV = +$120 per trade

A 1:1 ratio requires high win rate to profit. The trader might extend the target to $56 (1:2) or accept the conservative approach given high confidence.

Example 3: Short Position During Downtrend

A trader shorts a breakdown:

• Direction: Short
• Entry: $100.00
• Stop Loss: $105.00 (above breakdown point)
• Target: $90.00
• Position: 50 shares

Analysis:

• Risk: $5.00 per share ($250 total)
• Reward: $10.00 per share ($500 total)
• R:R Ratio: 1:2
• Breakeven Win Rate: 33.3%
• At 45% win rate: EV = +$87.50 per trade

Good risk-adjusted setup for a short trade with clear technical levels.

Tips and Best Practices

Setting Minimum R:R Standards

Many successful traders use minimum R:R requirements:

• Day traders: Often require 1:1.5 or 1:2 minimum due to frequent trading
• Swing traders: Typically target 1:2 or 1:3 to compensate for longer hold times
• Position traders: May accept 1:1 for high-probability setups with multi-week holds

Balancing R:R with Probability

Higher R:R targets are further away and less likely to be hit. A 1:4 target might only hit 20% of the time, while a 1:2 target hits 45%. The math might work out similarly:

• 1:2 at 45% win rate: EV = (0.45 x 2) - (0.55 x 1) = 0.35R profit
• 1:4 at 20% win rate: EV = (0.20 x 4) - (0.80 x 1) = 0.00 (breakeven)

Test your strategy to find the optimal R:R for your style.

Using Multiple Targets

Consider scaling out at multiple targets:

• Exit 1/3 at 1:1 to lock in some profit
• Exit 1/3 at 2:1 for strong reward capture
• Trail stop on final 1/3 for maximum gain

This captures profit at various levels while maintaining exposure to larger moves.

Accounting for Commissions and Slippage

In practice, you rarely get exactly your entry, stop, or target price. Add a buffer:

• Assume entry is slightly worse than planned
• Assume stop triggers slightly beyond your level
• Assume target fills slightly before your level

These real-world factors reduce effective R:R slightly.

When to Skip a Trade

Skip trades where:

• R:R is below 1:1 (risking more than potential gain)
• Breakeven win rate exceeds your historical performance
• Expected value is negative at realistic win rate estimates
• Stop placement requires arbitrary distance rather than technical levels

Frequently Asked Questions

Is higher R:R always better?

Not necessarily. Very high R:R ratios (1:5+) typically have very low probability of success. A 1:2 or 1:3 trade that hits frequently often outperforms a 1:5 trade that rarely reaches target. Balance R:R against realistic probability assessment.

How do I estimate win rate?

Backtest your strategy on historical data to determine actual win rate. Without data, estimate conservatively: most strategies have 40-60% win rates. Overestimating win rate leads to taking trades with negative expected value.

Should I adjust stops to improve R:R?

Never move your stop closer just to improve the ratio on paper. Stop placement should be based on technical levels where your trade thesis is invalidated, not on R:R mathematics. Instead, adjust position size or target price.

Does R:R work for options?

The concept applies, but options have additional considerations: time decay, changing delta, and the ability to close early. Calculate R:R based on your intended exit prices, but recognize that options trades often close at different levels than planned.

What about trades with multiple targets?

Calculate weighted R:R based on your exit plan. If exiting 50% at 1:2 and 50% at 1:4, your average R:R is 1:3. The calculator's multiple analysis helps plan these scaled exits.

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Before risking capital, know your ratio. A trade that risks $100 to make $50 needs to win twice as often as it loses just to break even, while a trade risking $100 to make $300 profits with only a 25% win rate. The mathematics of risk and reward are unforgiving but simple: understand them, respect them, and let them guide your trade selection toward setups where the odds favor you.