Forex Lot Size Calculator
After you know your dollar risk and stop distance in pips, this calculator outputs the lot size to enter in MetaTrader or your prop firm platform.
Key takeaway: Lot size = dollar risk ÷ (stop pips × pip value per lot). A $100 risk budget with a 20-pip stop on EUR/USD at ~$10/pip/lot implies 0.5 lots, not a round-number guess.
Calculator
Lots = dollar risk ÷ (stop pips × pip value per standard lot). Result is rounded to two decimal places (broker minimum lot step).
Results
- Recommended lots
- 0.50
- Risk if 1.0 lot
- $200.00
How this formula works
Lots = dollar risk ÷ (stop pips × pip value per standard lot). Result is rounded to two decimal places (broker minimum lot step).
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FAQ
- What is a standard lot in forex?
- A standard lot is 100,000 units of the base currency. Mini = 10,000 (0.1 lot), micro = 1,000 (0.01 lot). Brokers display lot size in MetaTrader as 1.00, 0.10, 0.01.
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