Work out the exact lot size to risk a fixed percentage of your account on any trade. Enter your balance, the percentage you want to risk, and your stop loss in pips.
Works with any broker and platform, including MetaTrader 4 (MT4), MetaTrader 5 (MT5), cTrader, NinjaTrader, TradingView, DXtrade and Match-Trader.
Position sizing is the single most important risk-management skill in trading. This calculator tells you how many lots to trade so that if your stop loss is hit, you only lose the percentage of your account you chose in advance.
Lot size = (Account balance × Risk %) ÷ (Stop loss in pips × Pip value per lot). For example, risking 1% of a $10,000 account with a 20-pip stop on EUR/USD: $100 ÷ (20 × $10) = 0.50 lots.
| Amount at risk | Balance × risk % (e.g. $10,000 × 1% = $100) |
| Pip value (standard lot) | ~$10 on most USD-quoted pairs; varies on JPY pairs, gold and indices |
| Recommended risk | 0.5% to 2% per trade for most retail traders |
Pip values are typical for a USD-denominated account and can vary slightly with live exchange rates. Confirm the exact pip value in your MT4/MT5 platform before sizing a live trade.
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Start free trialMultiply your account balance by the percentage you want to risk, then divide by your stop loss in pips multiplied by the pip value per lot. For a $10,000 account risking 1% with a 20-pip stop on EUR/USD, that is $100 divided by (20 x $10) = 0.50 lots.
Most professional and prop-firm traders risk between 0.5% and 2% of their account per trade. Lower risk protects your capital during losing streaks and is essential for passing prop firm challenges with strict drawdown limits.
On most USD-quoted forex pairs a standard lot (100,000 units) is worth about $10 per pip. It differs on JPY pairs, gold, silver and indices, so this calculator lets you pick the instrument or enter a custom pip value.
Yes. The lot sizes this calculator produces are entered directly into the volume field on MetaTrader 4 or MetaTrader 5, or any other trading platform that uses standard lots.
See what each pip is worth in your account currency.
Calculate the profit or loss of a trade before you take it.
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