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Risk/Reward Ratio Calculator

Calculate the risk/reward ratio for any trade. Determine your position size, expected value, and whether a trade is worth taking.

Trade Setup

$

STRONG SETUP

1:2.5

Risk/reward ratio

Dollar risk
$100
Dollar reward
$250
Position size
25 shares ($1,250)
Break-even win rate
28.6%

EXPECTED VALUE PER TRADE

+$57

At 45% win rate: Profitable edge

Frequently Asked Questions

What is a good risk/reward ratio?

Most professional traders target minimum 1:2 (risk $1 to make $2). A 1:3 or better ratio means you can be wrong 50% of the time and still profit. Never take a trade with a ratio below 1:1.

How does win rate interact with risk/reward?

Expected value = (Win rate × Avg win) - (Loss rate × Avg loss). At 1:2 R:R, you only need to win 34% of trades to break even. At 1:3 R:R, break-even win rate is just 25%.

Should risk be the same on every trade?

Fixed fractional risk (1-2% of account per trade) is the standard professional approach. It grows position sizes with your account and prevents any single loss from being catastrophic.

For educational purposes only. Not financial advice. Consult a qualified advisor before making investment decisions.