Position Size Calculator
Enter your balance, how much you are willing to lose and where your stop is. You get the lot size that risks exactly that — for gold, forex majors, NAS100, US30 and BTC.
1 lot = 100 oz. A $1.00 move = $100 per lot.
- Money at risk
- $100.00
- Risk at rounded size
- $100.00
- Value per 1.00 move (1 lot)
- $100.00
Rounded down to 0.01 lots so you never risk more than planned. Assumes a USD account; check your broker’s contract size before trading.
How the calculation works
Position size is not a guess. It comes from three numbers you already know before you click buy:
- Money at risk = balance × risk %. $10,000 at 1% is $100.
- Stop distance — in pips for forex, in price for gold, indices and crypto.
- Value per unit — what a 1-pip (or 1.00) move pays on one lot.
Lot size = money at risk ÷ (stop distance × value per unit per lot)
Worked examples
- XAUUSD: $100 risk, $5.00 stop → 100 ÷ (5 × $100) = 0.20 lots.
- EURUSD: $100 risk, 20-pip stop → 100 ÷ (20 × $10) = 0.50 lots.
- NAS100 ($1 per point broker): $100 risk, 50-point stop → 100 ÷ (50 × $1) = 2.00 lots.
Where the stop should go
The calculator tells you how big to trade once the stop is set — it cannot tell you where the stop belongs. Smart Money traders usually place it beyond the liquidity sweep or the order block that triggered the entry. That is the part the Smart Money Energizer indicator draws on your TradingView chart, with a 0–100 score for each setup.
FAQ
How do I calculate lot size for gold (XAUUSD)?
On most brokers 1 lot of XAUUSD is 100 ounces, so a $1.00 price move is worth $100 per lot. Lot size = money at risk ÷ (stop distance in dollars × 100). Risking $100 with a $5.00 stop gives 100 ÷ (5 × 100) = 0.20 lots.
What is the formula for forex position size?
Lot size = (account balance × risk %) ÷ (stop loss in pips × pip value per lot). For pairs quoted in USD such as EURUSD and GBPUSD the pip value is $10 per standard lot.
Why is NAS100 lot size different between brokers?
Index CFDs have no standard contract. Some brokers pay $1 per point per lot, others $10. Open the contract specification in MT5 (right-click the symbol → Specification) and enter that value in the calculator.
How much should I risk per trade?
Many traders cap risk at 0.5–1% of the account per trade, and prop firm rules often force it lower because of daily loss limits. The calculator rounds down so the real risk never exceeds what you set.
Know your size — now find better entries. Smart Money Energizer scores every setup on your TradingView chart from 7 confluences, so you only size up the ones worth taking.
See how it worksEducational tool only, not financial advice. Trading leveraged products carries a high risk of loss.