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Crypto Position Size Calculator with Stop Loss

Estimate a linear position from your risk budget, entry, stop and costs. Separate notional size, margin and potential loss.

Use one quote currency. Explicitly enter 0 for no fee or slippage. Long stop must be below entry; short stop above entry.

Enter valid parameters to show results.

Risk budget, position size and leverage are different

Quantity = risk budget / scenario loss per unit. Unit loss includes the move to the assumed exit plus entry and exit fees. Long assumed exit = stop minus slippage; short = stop plus slippage. Notional = quantity × entry; simplified margin = notional / leverage.

Example: risk 100, entry 100, stop 95, fee 0.1% each side, zero slippage: loss per unit 5.195, quantity about 19.2493, notional 1924.93; margin at 2× about 962.46. Changing to 5× does not reduce the scenario loss of 100. Round quantity down to the platform lot step; recheck minimum orders, margin, funding and liquidation rules.

Excludes funding, borrowing, taxes, risk tiers and liquidation price. Liquidation may precede the stop. Output is neither an executable order size nor a maximum loss.

Read the risk and position sizing guide →Reference: CME position sizing education (not crypto platform rules)

Reviewed 2026-10-28. No signup; entered amounts are not uploaded.