Position size = (Account Balance × Risk %) ÷ (Stop Loss in pips × Pip Value). Always risk a fixed small percentage per trade (1–2% is standard) so a losing streak cannot blow your account. These calculators work for XAUUSD (Gold) and all major forex pairs, free and with no signup.
| Pair | Pip size | Pip value / 1.0 lot (USD) | Pip value / 0.01 lot |
|---|---|---|---|
| XAUUSD (Gold) | 0.10 | $10.00 | $0.10 |
| EURUSD | 0.0001 | $10.00 | $0.10 |
| GBPUSD | 0.0001 | $10.00 | $0.10 |
| AUDUSD | 0.0001 | $10.00 | $0.10 |
| USDJPY | 0.01 | ≈$9.00 | ≈$0.09 |
A good risk/reward ratio is 1:2 or higher. At 1:2 you only need to win 33% of trades to break even; at 1:3 you need just 25%. Use the R:R calculator above before every entry to confirm the trade is worth taking.
Dedicated calculators: Forex Position Size Calculator · Gold Lot Size Calculator · XAUUSD Pip Calculator · What time is NFP today?