Position size calculator
Decide how much you're willing to lose first, then size the trade to match. Enter your balance, the percentage you want to risk and your stop distance; the calculator shows the lot size to open and your 1R, 2R and 3R targets.
Position size calculator
Targets (1R, 2R, 3R)
R-multiple calculator
Enter your entry, stop and exit price to see how many R the trade made. Long or short is detected automatically.
The calculator gives approximate values and assumes a USD account; pip values change with exchange rates and your broker's contract size. Not investment advice.
How position size is calculated
The formula is simple: Lots = Risk amount ÷ (Stop distance in pips × pip value of 1 lot). Example: $10,000 balance, 1% risk ($100), a 25-pip stop on EURUSD. One standard lot of EURUSD is worth about $10 per pip, so 100 ÷ (25 × 10) = 0.40 lots.
- .../USD pairs (EURUSD, GBPUSD, AUDUSD): about $10 per pip per lot.
- .../JPY pairs (USDJPY): about 1,000 ÷ rate dollars per pip per lot.
- USD/... pairs (USDCHF, USDCAD): about 10 ÷ rate dollars per pip per lot.
- Gold (XAUUSD): 1 lot = 100 oz; a $1 move in price is worth $100 per lot.
Contract sizes can differ between brokers; check your broker's contract specification before large trades. The calculator assumes a USD account.
What R means and why it matters
R is the amount you risk on a trade. If you risked $100 and made $180, the trade is +1.8R; if you were stopped out it is −1R. Measuring results in R lets you compare trades even when your position size changes, and shows whether a strategy works far more clearly than dollar amounts. TradeLog calculates R for every trade automatically.
Track your trades in R
To see how the risk you planned actually played out, log your trades. TradeLog imports them from your MT4/MT5 report or with auto-sync and shows what works by setup, session and mistake. Details: MT5/MT4 trading journal.