Risk-reward ratio, the win rate you need to break even, and expectancy.
You risk ₹2.00 per share to make ₹6.00 — a 3× reward-to-risk ratio.
The risk-reward ratio, break-even win rate and expectancy are computed purely from the prices you enter and exclude brokerage, taxes and slippage — a real edge needs its win rate to clear the break-even rate after those costs. This is an educational calculator, not investment advice or a trading signal.
It compares potential reward to risk: reward per share (target − entry) divided by risk per share (entry − stop). A 1:3 ratio means you aim to make three times what you risk.
Break-even win rate = 1 ÷ (1 + R). At 1:3 you only need to win about 25% of the time to break even before costs; at 1:1 you need 50%.
PnL Book computes your real risk-reward and win rate from every trade you import — so you can see whether your actual R-multiples beat the break-even rate, automatically, no calculator needed.
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