Tools › Position size

Position size calculator

Risk-based sizing, checked against the price at which the position is actually closed. Opens on BTC at $62,699.00.

Position size

0.0797

BTC · notional $5,000

Liquidation at 10×

$57,143.39

beyond your stop

Closed out by a move of

8.86%

you sized for 5.00%

Max leverage for this stop

16×

keeps liquidation beyond $59,564.05

The stop is reachable. Liquidation sits at $57,143.39 (8.86% away), past your stop at 5.00%, so the stop executes first and the loss is bounded by the $250.00 you budgeted. Leverage up to 16× keeps that true.

Why sizing alone is not enough

The standard formula — risk budget ÷ distance to stop — sizes the position so that if the stop fills, you lose exactly what you budgeted. It says nothing about whether the stop is reachable. Leverage sets the liquidation price independently, and when liquidation falls between entry and stop the exchange closes the position first. The stop is then decoration.

The check has to use the tier-correct liquidation price. At $5,000 notional this contract sits in tier 1, where maintenance margin is 1.250% — so liquidation is $714.29 away from what the common entry × (1 ∓ 1/leverage) formula reports. See that gap on a live contract →

Fees, slippage and funding are not deducted here, and a gap through the stop can exceed the budgeted loss regardless of sizing. Maintenance margin is read at the tier your notional falls in; a size large enough to cross a boundary moves it further.

What leverage this contract actually allows → · BTC detail →