How to Calculate Lot Size in Forex
What Is Lot Size in Forex?
A lot size represents the number of currency units you trade. Standard lots are 100,000 units, mini lots are 10,000, and micro lots are 1,000. For Georgia traders with smaller accounts (e.g., 500-2000 USD), micro lots are common. The pip value varies by lot size: 1 standard lot = $10 per pip for USD pairs, 1 mini lot = $1, and 1 micro lot = $0.10.
Step-by-Step Calculation Formula
Use this formula: Lot size = (Account balance × Risk %) ÷ (Stop loss in pips × Pip value per lot). Example: You have a 1,000 USD account, risk 2% (20 USD), stop loss 30 pips, and pip value for a mini lot is $1. Lot size = (1000 × 0.02) ÷ (30 × 1) = 20 ÷ 30 = 0.67 mini lots. Round down to 0.6 lots for safety.
Adjusting for Account Currency
If your broker account is in USD and you fund via GEL, convert GEL to USD at the current rate (e.g., 2.65 GEL/USD). A 5,000 GEL deposit equals ~1,887 USD. Then apply the formula. Most brokers display lot sizes in units, so you can also use a lot size calculator tool.
Practical Example for Georgia Traders
Suppose you deposit 300 USD via Skrill. You set risk at 1% (3 USD), stop loss 20 pips, and trade EUR/USD (pip value $1 for mini lot). Lot size = 3 ÷ (20 × 1) = 0.15 mini lots. In MT4, you would enter 0.15. For USDT deposits, the calculation is identical because USDT is pegged to USD.