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ClosedCandle

Position Size Calculator

Choose how much of your account you are prepared to lose if the stop is hit; the calculator works out how large the position can be. Calculated in your browser.

When set, the cost of getting in and out is counted inside the risk. ClosedCandle's statistics use 0.15% per side.

How it works

Position size = amount at risk ÷ loss per unit at the stop. Without costs, the loss per unit is simply |entry − stop|. With a cost rate c per side, the loss per unit becomes |entry − stop| + c × (entry + stop).

Worked example

Account 10,000 USDT, risk 1% → 100 USDT at risk. Entry 50,000, stop 49,000 → 1,000 per unit. Position size = 100 ÷ 1,000 = 0.1 BTC, worth 5,000 USDT (half the account, so no leverage is needed). With 0.1% cost per side the loss per unit is 1,000 + 0.001 × 99,000 = 1,099, so the size drops to 0.0910 BTC.

Leverage changes how much margin the position ties up, not how much you lose at the stop. A stop beyond the liquidation price is never reached; check it with the liquidation price calculator.