Free trading tools
Position size calculator
Risk a fixed % of your account per trade. Enter your balance, entry, and stop — we'll tell you exactly how many units to buy or sell.
Inputs
Most pros risk 0.5–2% per trade. Anything above 5% means you blow up after 20 stop-outs in a row.
Position
Position size (units)
0.1
Notional value
5,000.00 USDT
Risk budget
Your max dollar loss if the stop fills
100.00 USDT
Max loss at stop
100.00 USDT
Position size = (account × risk %) ÷ |entry − stop|. The dollar loss when stop hits equals exactly your risk budget — no surprises.
Want more than a calculator?
Backtest, walk-forward optimize, and paper-trade real strategies on Noon Barbari — free tier, no card required.
Read the docs →