Position Size Calculator
Work out how many lots to trade so a losing trade risks only the percentage of your account you choose.
Position Size Calculator
Risk amount is your balance multiplied by your risk percentage. Position size is that risk amount divided by the loss per lot if your stop loss is hit (stop loss in pips times pip value per lot). Check the pip value with your broker, as it varies by instrument and lot definition.
Position size
0.2000 lots
Educational calculator only, not financial advice.
About our Position Size Calculator
The Position Size Calculator turns your account balance, risk percentage, stop loss distance, and pip value per lot into the position size that keeps your risk at your chosen level. Enter your numbers and it shows the dollar amount at risk and the resulting size in lots. It is an educational planning tool: always confirm the pip value and lot definition with your broker before placing a trade.
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Frequently Asked Questions
How is position size calculated?
First, the amount at risk is your account balance multiplied by your risk percentage. Then that amount is divided by the loss per lot if your stop loss is hit, which is your stop loss in pips multiplied by the pip value per lot.
What does risking 1% per trade mean?
It means that if the trade hits your stop loss, you would lose about 1% of your account balance on that trade, before spreads, commissions, or slippage, which can change the real outcome.
What is a pip value per lot?
It is how much one pip of price movement is worth for one lot of the instrument you are trading, in your account currency. It varies by instrument and by your broker's lot definition, so check it with your broker rather than assuming a fixed value.
What happens if my stop loss is very small?
A smaller stop loss distance means the same risk amount allows a larger position size, because less loss per lot is expected if the stop is hit. That also means a small price move against you closes the trade, so position size alone does not make a trade safe.
Is this calculator financial advice?
No. It is an educational calculator only. It does not recommend any trade, instrument, or risk level, and it cannot account for spreads, commissions, slippage, or gaps in price.