Position size & leverage risk calculator

Experienced traders open a position in the opposite order: decide the most you're willing to lose on this trade first, then work backward to how big it should be. Fill in the numbers below and the tool sizes the trade from the risk you set — let your stop decide your size, instead of pulling a leverage number out of thin air.

Account capital (USDT)

Risk per trade (%, typically 1–2)

Entry price (USDT)

Stop price (USDT)

Planned leverage (used to estimate required margin; can be left blank)

Most you can lose

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Suggested size (units of the asset)

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Notional value

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Required margin ≈

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A pure risk-first estimate: most you can lose = capital × risk per trade; suggested size = most you can lose ÷ |entry price − stop price|. It leaves out fees, funding, and slippage, so your actual fills and the platform's rules may shift the result a little. This tool is here to build the "set the risk before the size" habit — it's not a trading signal, and it isn't financial advice.

How do you actually use the 2% rule? Why you only risk this little per trade, and where the stop should sit, is covered in Risk management.

Read risk management →