Risk-Reward Ratio: Why It Decides Long-Term Results

The risk-reward ratio is one of the most important — and most overlooked — numbers in trading. It compares how much you are risking on a trade to how much you are aiming to make. Get this right and you can be profitable even while being wrong more than half the time.

How to calculate it

The ratio is simple:

Risk-reward = potential reward ÷ potential risk

• Risk = distance from your entry to your stop-loss.
• Reward = distance from your entry to your target (where you plan to take profit).

Example

• Entry: $50
• Stop-loss: $48 → risk is $2
• Target: $56 → reward is $6

Risk-reward = $6 ÷ $2 = 3

That is a 3:1 ratio — you are risking 1 to potentially make 3.

Why win rate alone is misleading

Beginners obsess over being right. But being right often isn’t the same as making money. Consider two traders:

• Trader A wins 70% of trades, but each win makes $1 and each loss costs $3. Over 10 trades: +7 − 9 = −2. A losing system, despite a high win rate.
• Trader B wins 40% of trades, but each win makes $3 and each loss costs $1. Over 10 trades: +12 − 6 = +6. A winning system, despite being wrong most of the time.

The lesson: a good risk-reward ratio can carry a modest win rate. This is why experienced traders care less about being right and more about the size of wins versus losses.

Setting the target honestly

The catch: you can’t just invent a generous target to make the ratio look good. The target has to be realistic — based on a real level the price could plausibly reach, like the next resistance. A 5:1 ratio means nothing if price has almost no chance of getting there.

How it pairs with position sizing

Risk-reward and position sizing are two halves of the same discipline:

• Position sizing decides how much you can lose (a fixed small % of your account).
• Risk-reward decides whether the potential gain justifies taking that risk at all.

Together they turn trading from guesswork into a process you can repeat.

A realistic expectation

No ratio guarantees a profitable trade — any single trade can lose. The point is the math over many trades. This is educational material about a standard framework, not financial advice.

Try the calculator

Once you know your entry and stop, the Position Size Calculator tells you how many shares keep your risk fixed — the perfect companion to thinking in risk-reward terms before every trade.