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Position size calculator

How many lots, for the risk you choose.

Amount at risk
–
Position size
– lots

Contract sizes and pip definitions differ between brokers, especially for gold. Check your broker's contract specification before you trade.

How the position size is calculated

The calculator divides the amount you are willing to lose by the loss per lot at your stop, then rounds down to 0.01 lot, so the real risk never exceeds your limit.

lots = (balance × risk %) ÷ (stop in pips × pip value per lot)

How to use it

  1. Enter your balance and the percentage you are willing to risk on this trade.
  2. Enter the stop distance in pips, from your entry to your stop loss.
  3. Enter what one pip is worth for one lot in your account currency. For EUR/USD on a USD account it is 10. For gold with a 0.10 pip and a 100 oz contract, it is also 10.
  4. Read the amount at risk and the lot size, then check the actual risk after rounding.

Good to know

  • Spread, commission and slippage can make the real loss a little larger than planned.
  • Leverage changes how much margin you need, not how much you risk.
  • Contract sizes differ between brokers, especially for gold. Check your broker's specification.

Related notes