What Is the Risk/Reward Ratio?
The risk/reward ratio (R:R ratio) compares the maximum potential loss of a trade to its maximum potential gain. It is calculated before entering a position — using your planned entry price, stop-loss level, and take-profit target — to determine whether the trade offers sufficient reward for the risk you are accepting.
A risk/reward ratio of 1:2 means you are risking $1 to potentially earn $2. A ratio of 1:3 means risking $1 to potentially earn $3. In both cases, you can be wrong more often than right and still be profitable — which is exactly why professional traders treat R:R as a non-negotiable filter before any trade.
The risk/reward ratio is used by:
- Stock and swing traders evaluating whether a setup justifies the risk
- Day traders filtering low-quality setups before the open
- Options traders assessing maximum loss versus maximum gain scenarios
- Portfolio managers comparing trade opportunities on a standardised basis
- New traders building disciplined pre-trade habits from the start
The Formula & How to Calculate It
The risk/reward ratio is calculated entirely from three prices: your entry, your stop-loss, and your take-profit target.
Risk = |Entry Price − Stop-Loss Price|
Reward = |Take-Profit Price − Entry Price|
R:R = Reward ÷ Risk (expressed as 1 : X)
Example (Long trade):
Entry: $50.00
Stop-loss: $47.50 → Risk = $2.50 per share
Take-profit: $57.50 → Reward = $7.50 per share
R:R = $7.50 ÷ $2.50 = 3.0 → expressed as 1 : 3
Dollar Risk = Risk per Share × Number of Shares
Dollar Reward = Reward per Share × Number of Shares
Example: 200 shares at 1:3 R:R
Dollar Risk = $2.50 × 200 = $500
Dollar Reward = $7.50 × 200 = $1,500
Short trades
For short positions, the entry and stop-loss are reversed: the stop-loss is above entry (where you buy back to close at a loss) and the target is below entry (where you buy back at a profit). The calculation is identical — use absolute values. Our calculator handles both long and short automatically with a direction toggle.
Break-even win rate
Every R:R ratio implies a minimum win rate needed to break even over many trades. This is one of the most important numbers in trading:
Break-even Win Rate = 1 ÷ (1 + R:R) × 100
Examples:
R:R 1:1 → Break-even = 50.0% win rate needed
R:R 1:2 → Break-even = 33.3% win rate needed
R:R 1:3 → Break-even = 25.0% win rate needed
R:R 1:4 → Break-even = 20.0% win rate needed
This means at a 1:3 R:R ratio, you can be wrong 75% of the time and still not lose money. This is a powerful concept that fundamentally changes how you think about trade selection and losing streaks.
What Makes a Good Risk/Reward Ratio?
There is no single universal answer — the right R:R depends on your strategy, trading style, and win rate. But there are clear professional benchmarks:
| R:R Ratio | Rating | Break-even Win Rate | Context |
|---|---|---|---|
| Below 1:1 | Unfavourable ❌ | >50% | Avoid — must win more than 50% just to break even |
| 1:1 | Marginal ⚠️ | 50.0% | Requires a consistently high win rate to be profitable |
| 1:1.5 | Acceptable | 40.0% | Minimum for most systematic strategies |
| 1:2 | Good ✅ | 33.3% | Standard professional minimum — robust to losing streaks |
| 1:3 | Excellent 🚀 | 25.0% | High-quality setup — wide margin for error |
| 1:4+ | Outstanding | <20% | Rare but powerful — home run setups |
Most professional traders require a minimum 1:2 risk/reward ratio before considering a trade. Below that threshold, the mathematics of trading work against you even with a decent win rate.
A trader with a 40% win rate and 1:3 R:R makes money consistently. A trader with a 60% win rate but 1:0.8 R:R loses money consistently. Win rate alone tells you almost nothing without knowing the R:R behind it.
The Win Rate Relationship — The Missing Piece
Risk/reward ratio and win rate are two sides of the same coin. Understanding how they interact is the foundation of trading edge. The concept that ties them together is expectancy — the average amount you expect to make (or lose) per trade over the long run.
Expectancy = (Win Rate × Avg Win) − (Loss Rate × Avg Loss)
Example: Win Rate 45%, R:R 1:2.5, Risk $500 per trade
Avg Win = $500 × 2.5 = $1,250
Avg Loss = $500
Expectancy = (0.45 × $1,250) − (0.55 × $500)
= $562.50 − $275.00
= +$287.50 per trade ← Profitable strategy ✅
Positive expectancy means the strategy makes money over time regardless of any individual trade outcome. This is why professional traders focus on expectancy — not on whether any single trade wins or loses.
| Win Rate | Required R:R to Break Even | R:R for Positive Expectancy |
|---|---|---|
| 30% | 1 : 2.33 | > 1:2.33 |
| 40% | 1 : 1.50 | > 1:1.50 |
| 50% | 1 : 1.00 | > 1:1.00 |
| 60% | 1 : 0.67 | > 1:0.67 |
| 70% | 1 : 0.43 | > 1:0.43 |
High win rate strategies can survive with lower R:R ratios, but they are psychologically demanding and statistically fragile. Low win rate strategies with high R:R are more robust — a few large winners easily offset many small losses. Most professional trend-following systems win less than 40% of trades but maintain R:R ratios of 3:1 or higher.
How to Use the Risk/Reward Calculator Pro — Tab by Tab
Our Risk/Reward Calculator Pro has five tabs covering every dimension of trade risk analysis — from a quick R:R check to multi-target exit planning and full trade log tracking.
Tab 1: Basic R/R — Instant Trade Evaluation
Enter your entry price, stop-loss, and take-profit. Select Long or Short with a single toggle. The calculator instantly shows the R:R ratio with a colour-coded verdict (Excellent / Good / Acceptable / Poor), the break-even win rate, and a visual risk vs reward bar showing the proportion at a glance. Optionally add shares and commission to get exact dollar risk, dollar reward, and net P&L after fees.
- Entry: $85.00 | Stop-loss: $81.50 | Target: $96.50
- Shares: 150 | Commission: $5.00
→ R:R: 1 : 3.29 — Excellent 🚀 | Risk: $525.00 | Reward: $1,725.00 | Break-even Win Rate: 23.3%
Tab 2: Position Size — Never Risk More Than You Plan
Enter your account balance and maximum risk percentage, then your entry and stop-loss prices. The calculator determines the exact number of shares to buy so that the trade risks precisely your target percentage of account — no more, no less. Quick buttons (0.5%, 1%, 2%, 5%) let you test different risk levels instantly. A colour-coded risk meter warns when risk is Conservative, Moderate, Aggressive, or Dangerous.
- Account: $40,000 | Risk: 1% = $400
- Entry: $85.00 | Stop: $81.50 | Target: $96.50
→ Shares to Buy: 114 | Position Value: $9,690 | Dollar Risk: $399.00 | % of Account: 24.2% | R:R: 1:3.29 — Excellent
Tab 3: Multi-Target — Planning Partial Exits
Enter your entry, stop-loss, total shares, and up to six price targets with the percentage of position to exit at each level. The calculator shows profit per target, shares sold at each exit, and — most importantly — the weighted average R:R across all partial exits. A table breakdown and bar chart make it easy to visualise the full exit plan.
- Entry: $85.00 | Stop: $81.50 | Shares: 300
- T1: $91.00 → sell 33% (99 shares)
- T2: $96.50 → sell 33% (99 shares)
- T3: $104.00 → sell 34% (102 shares)
→ Weighted Avg R:R: 1 : 3.61 | Total Risk: $1,050 | Expected Reward: $3,793
Tab 4: Trade Log — Track Your Real Performance
Add each completed trade with its entry, exit, shares, stop, and target. The calculator builds a running performance dashboard showing win rate, average R:R, total P&L, and — most critically — your expectancy per trade. A cumulative P&L chart with green/red colouring shows your equity curve at a glance. Remove individual trades to see how they affect your statistics.
Tab 5: Scenario — Compare Multiple Setups Side by Side
Enter up to four different trade setups simultaneously — each with its own entry, stop, and target — and compare R:R ratios side by side. The calculator highlights the winner, shows the break-even win rate for each setup, and renders a comparison bar chart. Useful when you have two or three potential trades and want to allocate to the highest-quality one.
- Setup A (AAPL): Entry $185, Stop $179, Target $205 → R:R 1 : 3.33
- Setup B (MSFT): Entry $310, Stop $302, Target $332 → R:R 1 : 2.75
- Setup C (NVDA): Entry $440, Stop $425, Target $475 → R:R 1 : 2.33
→ Winner: Setup A — AAPL (1:3.33) — 0.58 better than Setup B
Position Sizing — The Other Half of Risk Management
A favourable R:R ratio tells you whether a trade is worth taking. Position sizing tells you exactly how much to risk on it. The two concepts are inseparable: a 1:3 R:R trade sized at 10% of account is far more dangerous than a 1:1.5 R:R trade sized at 0.5% of account.
The professional standard is to risk a fixed percentage of account on every trade — typically 1–2%. This ensures that no single loss is catastrophic, and that position size automatically scales down during drawdowns and up as the account grows.
Dollar Risk = Account Size × Risk %
Stop Distance = |Entry − Stop-loss|
Shares = floor(Dollar Risk ÷ Stop Distance)
Example: $50,000 account, 1% risk, Entry $85, Stop $81.50
Dollar Risk = $50,000 × 0.01 = $500
Stop Distance = $85.00 − $81.50 = $3.50
Shares = floor($500 ÷ $3.50) = 142 shares
| Risk % | After 5 Consecutive Losses | After 10 Consecutive Losses | Verdict |
|---|---|---|---|
| 0.5% | −2.5% | −4.9% | Very safe ✅ |
| 1% | −4.9% | −9.6% | Safe ✅ |
| 2% | −9.6% | −18.3% | Moderate ⚠️ |
| 5% | −22.6% | −40.1% | Dangerous ❌ |
Multi-Target Exits — Locking In Profits in Stages
Most professional traders do not exit a full position at a single target. Scaling out in stages — selling a portion at each target level — serves two purposes: it locks in partial profit as the trade moves in your favour, and it allows the remaining position to run toward a larger target without the psychological pressure of holding a full position.
A common framework is the 33/33/34 exit: sell one-third at the first target (typically 1:1 or 1:1.5), one-third at the second target (1:2–1:3), and let the remaining third run with a trailing stop.
Weighted R:R = Total Expected Reward ÷ Total Risk
Example: 300 shares, Entry $85, Stop $81.50 (Risk = $3.50/share)
T1: 99 shares at $91.00 → Reward = $594 (R:R 1:1.71)
T2: 99 shares at $96.50 → Reward = $1,138.50 (R:R 1:3.29)
T3: 102 shares at $104.00 → Reward = $1,938 (R:R 1:5.43)
Total Risk = 300 × $3.50 = $1,050
Total Reward = $594 + $1,138.50 + $1,938 = $3,670.50
Weighted R:R = $3,670.50 ÷ $1,050 = 1 : 3.50
Trade Log & Expectancy — The Metrics That Actually Matter
Knowing your R:R before a trade is the first half of risk management. Tracking your actual results after trades is the second — and most traders skip it entirely. Without a trade log, you cannot know whether your strategy has positive expectancy, whether your win rate matches your assumptions, or whether you are actually following your own rules.
The four metrics every trader must track
| Metric | What It Tells You | Target |
|---|---|---|
| Win Rate | % of trades that are profitable | Depends on R:R — see table above |
| Average R:R | Average reward-to-risk across all trades | Minimum 1:2, ideally 1:3+ |
| Expectancy | Average $ earned per trade over many trades | Must be positive for a profitable strategy |
| Cumulative P&L | Total profit/loss across all logged trades | Upward-sloping equity curve |
The Trade Log tab in our calculator computes all four metrics automatically. Add trades as you complete them, and the dashboard updates instantly — giving you a live picture of your actual trading performance vs your planned R:R assumptions.
The 5 Most Common Risk/Reward Mistakes
1. Setting the target before the stop-loss
Many traders choose a price target first — often a round number or a recent high — and then squeeze a stop-loss to make the R:R look acceptable. The correct order is the reverse: place the stop where the trade thesis is invalidated, then assess whether a realistic target provides sufficient R:R. If it does not, skip the trade.
2. Moving the stop-loss to avoid being stopped out
When a trade moves against you, it is tempting to widen the stop to give it "more room." This destroys your planned R:R and turns a controlled loss into a potentially catastrophic one. Stop-losses should only ever be moved in the direction of the trade — never against it.
3. Ignoring commissions and slippage
On small accounts or high-frequency strategies, commissions can reduce effective R:R significantly. A trade that looks like 1:2 before fees may be closer to 1:1.7 after commissions. Use the fee input in the Basic R/R tab to calculate net P&L accurately.
4. Using the same R:R threshold for all setups
A 1:2 R:R is acceptable for a strategy with a 55% win rate. The same 1:2 R:R is marginal for a strategy with a 35% win rate. Your minimum required R:R should be set based on your actual historical win rate — not a generic rule of thumb. Use the Trade Log tab to measure your real win rate.
5. Confusing planned R:R with realised R:R
You might plan a 1:3 trade, but exit early at 1:1.5 because the trade "feels" like it is stalling. Over time, early exits compress your average R:R from what you planned — often the difference between a profitable and an unprofitable strategy. Track both planned and realised R:R to identify this pattern.
Pro Tips for Better Trade Planning
Set your minimum R:R filter and never override it
Decide before the trading day what your minimum acceptable R:R is — most professionals use 1:2 as the floor. When a setup does not meet that threshold, pass. Consistency in applying this filter is more valuable than any individual trade you might miss.
Calculate R:R before looking at the chart pattern
Chart patterns create emotional bias. If you see a "perfect" setup and then calculate the R:R, confirmation bias will make you accept a poor ratio. Instead, calculate R:R from raw price levels first — then look at the chart. Only proceed if the math justifies it.
Use the Scenario tab to choose between competing setups
When you have limited capital and multiple potential trades, do not choose based on conviction or chart pattern quality alone. Calculate R:R for each and allocate to the highest-ratio setup. Over time, this habit significantly improves portfolio-level performance.
Plan your multi-target exits before you enter
Decide in advance what percentage of the position you will sell at each target level. Writing this down — or entering it in the Multi-Target tab — before the trade begins removes in-trade decision-making, which is always compromised by emotion. Pre-commitment to an exit plan is one of the highest-leverage improvements most traders can make.
Review your Trade Log monthly — not daily
Daily P&L review is psychologically damaging and statistically meaningless. Any strategy has variance over a few days. Review your trade log monthly, looking for trends in win rate, average R:R, and expectancy over at least 20–30 trades. That sample size is the minimum for drawing meaningful conclusions.
Frequently Asked Questions
What is a risk/reward ratio in trading?
The risk/reward ratio compares the maximum potential loss of a trade to its maximum potential gain, calculated using the entry price, stop-loss level, and take-profit target. A ratio of 1:2 means you risk $1 to potentially make $2. It is calculated before entering a trade to determine whether the setup justifies the risk.
What is a good risk/reward ratio?
Most professional traders require a minimum 1:2 risk/reward ratio before considering a trade. A ratio of 1:3 is considered excellent. Below 1:1, the mathematics work against you — you must win more than 50% of trades just to break even, which is extremely difficult to sustain over time.
How does the risk/reward ratio relate to win rate?
Every R:R ratio implies a break-even win rate: the minimum percentage of trades that must be profitable to avoid losing money. A 1:2 ratio requires a 33.3% win rate to break even. A 1:3 ratio only requires 25%. This means a trader with a 30% win rate can still be profitable with a 1:3 R:R — which is why high R:R setups are so valuable.
What is expectancy in trading?
Expectancy is the average amount you expect to make or lose per trade over many trades, combining win rate and average R:R into a single number. Positive expectancy means the strategy is profitable over time. It is calculated as: (Win Rate × Average Win) − (Loss Rate × Average Loss). Our Trade Log tab calculates expectancy automatically as you add trades.
Should I always exit at a single take-profit level?
Not necessarily. Many professional traders scale out in stages — selling portions of the position at multiple target levels. This locks in partial profits as the trade moves in your favour while allowing the remaining position to run toward a larger target. The Multi-Target tab calculates the weighted average R:R across all partial exits.
How do I calculate risk/reward for a short trade?
For short trades, the stop-loss is above the entry price (where you close at a loss) and the target is below the entry price (where you close at a profit). The R:R calculation is identical — use the absolute distance between entry and stop for risk, and between entry and target for reward. Our calculator handles this automatically with the Long/Short direction toggle.
Is the Risk/Reward Calculator free to use?
Yes. The Risk/Reward Calculator Pro on StockToolHub is completely free to use with no registration required.
Evaluate your next trade before you take it
Basic R/R, Position Sizing, Multi-Target, Trade Log & Scenario — all free, instant, no sign-up.
Open Risk/Reward Calculator →