Position size calculator
How many lots should this trade be?
Decide what you are willing to lose first, put the stop where the chart says it belongs, and let the lot size fall out of the arithmetic. This one habit separates the traders who last from the ones who do not.
Next
Reading the number honestly
- Size is rounded down to the nearest 0.01 lot so you never risk more than you chose. “Actual risk” shows what the rounding leaves you with.
- If 0.01 lots already risks too much, the account is too small for that stop. Tightening the stop to fit the size is backwards — the stop belongs where the chart says, or the trade is skipped.
- 1% a trade means ten losses in a row cost about 10%. At 5% a trade the same run costs 40%. Streaks like that are normal, not unlucky.
- Spread and commission are not in this number. On a tight stop they are a real share of the risk — see true cost per lot. Your stop is also hit at the bid or ask, so add the spread to the distance on very tight stops.
Questions
What percentage should I risk per trade?
Most professional risk frameworks sit between 0.5% and 2%. The point is survivability: at 1% you can be wrong fifteen times in a row and still have 86% of the account. On a funded or prop-firm account with a 5% daily limit, 0.5% leaves ten full stops in a day; 1% leaves five. The calculator warns above 3%.
Worked example for a prop-firm account?
$100,000 funded account, 10% maximum drawdown, 5% daily limit, risking 0.5% ($500) a trade with a 25-pip stop on EUR/USD: $500 ÷ (25 × $10) = 2.00 lots. That leaves 20 full-stop losses before the maximum and 10 before the daily limit — the drawdown tool turns those into odds.
My account is in INR, EUR or AED — does this still work?
Yes. Choose your account currency; when the instrument is quoted in something else, a conversion-rate field appears, named the way markets quote it (USD/INR, EUR/USD) and pre-filled with an indicative rate you should overwrite with today's. Or enter the pip value straight from your platform. Many brokers serving India and the Gulf run USD accounts — if yours does, choose USD.
