Free tool

Position size calculator

How many lots can you trade so that one stop-out costs only what you planned? Put in your balance, risk and stop. No sign-in.

Account balance (USD) Risk per trade (%) Instrument

Stop distance (price) Current price

Leverage 1: Used for the margin estimate only. Leverage doesn't change your risk; lot size and stop do.

Contract specs (check your broker)

Defaults are standard specs for a USD account. Brokers differ, especially on indices and oil. Check Contract Specification in MT5: right-click the symbol in Market Watch → Specification.

Contract size Min lot Lot step

Result

Position size 0.01 lots, rounded down

Risk budget
$ at risk at this size
Margin needed
Daily loss limit (3%)
Full-risk losses that allows

Max lots by balance

Balance	Risk	Max lots

Survival rules

Risk 1% of the balance per trade. Never more than 2%.
Stop for the day at −3%, or after 2 losing trades, whichever comes first.
Size from the stop, not from how confident you feel. If the size is too small, skip the trade.
Never move a stop further away once the trade is on.

Education only. This calculator does arithmetic on the numbers you enter. It is not a trade recommendation, and it gives no entries, stops or targets. Prices can gap through a stop, so a real loss can be larger than shown. Trading leveraged products is high risk and you can lose more than your deposit. See the risk disclosure.