Position size calculator
Free for forex and crypto, no sign-up needed. Choose how much of your account you're willing to lose if the stop loss is hit, and you'll see the trade size that matches it.
Leave as 1 if your account is in USD. Example: a GBP account trading a USD pair uses the current USD→GBP rate.
1 standard lot = 100,000 units, 0.1 = mini, 0.01 = micro. Round down to your broker's smallest size.
Want the entry and stop worked out for you?
SignalDesk scans live markets and gives you a full plan (entry, stop loss, targets and this exact position size) for your account. Today's top idea is free, no account needed.
How it works
Money at risk = account size × risk %. Trade size = money at risk ÷ (distance from entry to stop × value of the quote currency). Many traders risk 0.5–2% per trade so a losing streak doesn't wipe out the account.
Educational only. Not financial advice. Spreads, fees and slippage are not included.