Free tool
Crypto position size calculator
Position size is how much you buy or sell so that, if your stop-loss is hit, you lose only the amount you decided in advance. Enter your account size, the percentage you are willing to risk, your entry and your stop, and the calculator does the rest.
- Direction
- Long
- Amount at risk
- $100.00
- Stop distance
- $1,000.00 (1.67%)
- Position size
- 0.1 coins
- Trade size
- $6,000.00
- Deposit at this leverage
- $1,200.00
Excludes fees, funding and slippage. Check that your liquidation price sits well beyond your stop.
How the calculation works
- Amount at risk = account size × risk percentage.
- Stop distance = the gap between your entry price and your stop-loss price.
- Position size in coins = amount at risk ÷ stop distance.
- Trade size in dollars = position size × entry price.
- Deposit needed at your leverage = trade size ÷ leverage. Leverage changes the deposit, not the amount you lose at the stop.
Worked example
Say your account is $10,000 and you risk 1% per trade: $100. You want to buy BTC at $60,000 with a stop at $59,000, a $1,000 stop distance.
$100 ÷ $1,000 = 0.1 BTC. That is a $6,000 trade. At 5x leverage the exchange holds a $1,200 deposit, but if the stop is hit you still lose about $100, plus fees and any slippage.
Frequently asked questions
How much should I risk per trade?
Many traders cap the loss on any single trade at a small, fixed share of the account, often between 0.5% and 2%, so that a run of losses does not wipe them out. The right number depends on your strategy and how many trades you take. The calculator lets you test different values before you decide.
Does leverage change my position size?
No. Your position size comes from the amount you are willing to lose and the distance to your stop. Leverage only changes how much deposit the exchange holds for that position. Higher leverage also moves your forced-close (liquidation) price closer to entry, so check that it sits well beyond your stop.
Why is my real loss bigger than the calculator says?
The calculator ignores trading fees, funding payments and slippage. A stop-loss order fills at the next available price, which can be worse than the stop price in a fast market. Leave room for these costs, especially on small coins and around news.
Does this work for short trades?
Yes. For a short, your stop sits above your entry. The calculator uses the distance between the two prices, so it works in either direction.
For education and planning only, not financial advice. Exchange rules, fees and funding vary.