Risk/Reward Ratio — The Single Most Important Concept in Trading

What Is Risk/Reward Ratio?

The risk/reward ratio (R:R) compares the potential loss on a trade to the potential gain. If you're risking $100 to make $200, your R:R is 1:2. If you risk $100 to make $300, it's 1:3.

The higher the reward relative to the risk, the fewer trades you need to win to be profitable. This is the mathematical foundation that separates professional trading from gambling.

Why Professional Traders Target R:R ≥ 1.5

The standard benchmark in professional trading is a minimum R:R of 1.5:1, with many trend-following systems targeting 2:1 to 3:1. Here's why this matters: at 1.5:1, you only need to win 40% of your trades to be profitable. At 2:1, you can lose 6 out of 10 trades and still make money.

Most retail traders do the opposite. They let losers run and cut winners short — a pattern sometimes called “taking profits too early and holding losses too long.” This is the fastest way to lose money even with a 60%+ win rate.

Win Rate Required at Different R:R Ratios

This table shows the minimum win rate needed to break even at different R:R ratios:

Notice that at R:R of 0.5:1 — risking $200 to make $100 — you need to be right 67% of the time just to break even. That's extremely difficult to sustain. Yet this is effectively what most new traders do when they cut winners and hold losers.

How to Set Stop Loss Correctly

Your stop loss should be placed where your trade thesis is invalidated — not where a specific dollar amount is breached. The four most reliable methods:

1. Structure-based: Below the nearest swing low (for longs), above the nearest swing high (for shorts). This is the most widely used professional approach.
2. ATR-based: Place SL at 1.5–2× the 14-period Average True Range below/above entry. Accounts for current volatility.
3. Round number + structure: Combine structure levels with round numbers (e.g., 1.0800, 150.00 for JPY) since these act as additional support/resistance.
4. Break of pattern: If you enter on a pattern (flag, triangle, double bottom), place SL just outside the pattern boundary.

How to Set Take Profit Correctly

Take profit placement is equally important. Three common approaches:

• Next significant resistance/support level — The most logical target. Don't place TP beyond a major level where price is likely to stall.
• Fixed R:R multiple — Target exactly 2× or 3× your risk distance. This ensures systematic R:R regardless of structure.
• Fibonacci extensions — The 127.2%, 161.8%, and 261.8% extensions of the prior swing are common institutional targets.

The cardinal rule: never move your take profit down on a winning trade out of fear. Moving TP down destroys your R:R and is the same psychological mistake as holding losers too long — just in reverse.

The Breakeven Move: Lock in Profits

Once a trade moves in your favour by 1× your risk (i.e., the R:R has already been achieved on the first target), many professional traders move their stop to breakeven. This creates a risk-free trade while still allowing the position to run toward the full target.

On a 1:2 R:R trade, for example, some traders take 50% of the position at 1:1 and move the remaining SL to breakeven — then target 1:3 on the second half. This approach, known as partial take profit, smooths equity curves and reduces emotional volatility.

R:R in Context: It Doesn't Work Alone

R:R is powerful but not standalone. It only works when combined with:

• Proper position sizing — Without sizing correctly, even a good R:R setup can wipe an account. See our position sizing guide.
• Pip value awareness — You need to know what each pip is worth in dollars before calculating risk. See the pip calculator guide.
• Margin management — Over-leveraging destroys good R:R setups. See what is forex margin.

Use the R:R Calculator to compute your ratio before every single trade. It takes 20 seconds and will force you to define your SL and TP before entering — which is exactly the discipline that separates profitable traders from the 90%.