Position size calculator
Position sizing decides how much you lose when a trade goes wrong. Enter your account balance, how much of it you are willing to risk and your stop-loss distance; the calculator gives you the lot size that keeps the loss at exactly that amount.
How it's calculated
Lot size = (Account balance × Risk %) ÷ (Stop loss in pips × Pip value per lot)
Example: With a $10,000 account, 1% risk ($100) and a 25-pip stop on EUR/USD, where one standard lot is worth $10 a pip: 100 ÷ (25 × 10) = 0.40 lots.
Questions
How much should I risk per trade?
Many traders risk between 0.5% and 2% of their account on a single trade. At 1%, ten losing trades in a row cost about 10% of the account, which is survivable. At 10% per trade, the same losing streak wipes out most of it.
What are standard, mini and micro lots?
A standard lot is 100,000 units of the base currency, a mini lot is 10,000 units (0.10) and a micro lot is 1,000 units (0.01). For gold one lot is 100 ounces, for silver 5,000 ounces, and for Bitcoin and Ether this calculator uses one coin per lot.
Why does the pip value change from pair to pair?
A pip is worth a fixed amount of the quote currency. For pairs quoted in US dollars, such as EUR/USD and GBP/USD, one pip on a standard lot is $10. For pairs like USD/JPY or EUR/GBP it has to be converted to dollars at the current exchange rate, so it moves with the market.
Does the calculator include spread and commission?
No. It sizes the position from your stop-loss distance only. If you want the loss including costs to stay within your risk, add the spread to your stop distance before calculating.
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For education only. TradeBaazi is a trading simulator: no real money is traded, and nothing here is financial advice.