Same trade, different risk
| Risk | Max loss | Position size | Quantity | Margin @ lev. |
|---|
Risk management tool
Position Size Calculator
Size every futures or spot trade from the one number that matters: how much you are willing to lose if your stop gets hit. Live prices, leverage, liquidation and fees included.
How position sizing works
Professional traders decide the loss first and the size second. If your account is $10,000 and you risk 1% per trade, the most a single stop-out may cost is $100. The distance between entry and stop tells you how many coins you can buy so that hitting the stop costs exactly that amount — fees included.
Leverage does not change your risk — the stop does. Leverage only changes how much margin you lock. Just make sure the liquidation price sits beyond your stop, otherwise the exchange closes you before your plan does.
Formulas
- Quantity = Risk ÷ (|Entry − Stop| + fee × (Entry + Stop))
- Position size = Quantity × Entry
- Margin = Position size ÷ Leverage
- Liquidation (long) ≈ Entry × (1 − 1/Leverage + MMR); short ≈ Entry × (1 + 1/Leverage − MMR)
- Risk / reward = |Target − Entry| ÷ |Entry − Stop|
For educational purposes only — not financial advice. Liquidation is an estimate for isolated margin; exact values depend on your exchange's tiers and funding. Live prices from CoinGecko / TradingView.
Questions traders ask
How much should I risk per trade?
Many traders risk 0.5% to 2% of their account on a single trade. With a $10,000 account and 1% risk, one stop-out costs at most $100.
Does leverage change my risk?
No. Your stop loss sets the risk, leverage only changes how much margin you lock. Just keep the liquidation price beyond your stop.
Are trading fees included?
Yes. The taker fee per side is built into the quantity, so hitting your stop costs the amount you chose, fees included.
Does it work for spot and futures?
Yes. It sizes spot and futures trades, long or short, with live prices for the selected coin.