Position size calculator
- Loss at stop, fees included
- —
- Stop distance
- —
- Position value
- —
- Margin needed
- —
- Approx. liquidation price
- —
- Highest leverage before liquidation passes stop
- —
- Reward at take profit
- —
Example values. Change any field. Everything is calculated in your browser and nothing is sent anywhere.
Position size is the amount you are willing to lose divided by the distance to your stop. Risking 1% of a $5,000 account on a long at 60,000 with a stop at 58,800 and 0.05% fees each side gives about 0.0397 BTC, a $2,382 position. Leverage changes the margin you post, not the size or the risk.
How is position size calculated?
Risk amount = balance × risk % Size = risk amount ÷ (|entry − stop| + fee × (entry + stop)) Value = size × entry Margin = value ÷ leverage
The fee term counts the fee to open at entry and the fee to close at the stop, so the loss at the stop comes out to the risk amount you chose, not a little more.
Why leverage does not change your risk
The loss at the stop depends only on size and stop distance. Leverage decides how much margin you post for that size. What leverage does change is where liquidation sits: push it high enough and the exchange closes you out before the stop is ever reached. The calculator shows the highest leverage that keeps liquidation beyond your stop.
Choosing a risk per trade
A common rule of thumb is to risk 0.5% to 2% of the account per trade, so a losing streak dents the account instead of ending it. Ten straight losses at 1% leave about 90% of the account; at 10% they leave about 35%.
How AI Trading Fleet sizes an order
A strategy asks for a size and the risk check decides what it gets: the smallest of the requested size (scaled by the strategy's stage) and your caps per strategy, per venue, per position and per market. A strategy on watch because its calibration is slipping gets half size; one on paper or retired gets none.
Questions
How do I calculate position size in crypto?
Divide the dollar amount you are willing to lose by the distance from entry to stop, with fees added to that distance. The result is the quantity to buy or sell.
Does leverage increase my risk?
Not the loss at your stop, which depends only on size and stop distance. It does move the liquidation price closer, and past a certain leverage the position is liquidated before the stop.
What is a good risk per trade?
Many traders use 0.5% to 2% of their account per trade. It is a rule of thumb, not a recommendation for your situation.
What does R mean on the take-profit line?
Reward divided by risk. 2R means the take profit, after fees, earns twice what the stop loses.
Reserve Early Access for $10 in crypto: 50% off your first 12 months, deposit credited to your first payment.
Trading involves risk of loss. Nothing here is investment advice. Read the risk disclosure.