Position Size Calculator
Work out exactly how many lots, contracts, or units to trade so you never risk more than you intend to. Built for prop firm challenges where one oversized trade can blow the daily loss limit and end the run.
Your trade parameters
How this works
Position size = (Account × Risk %) ÷ (Stop distance × Value per pip). For forex pairs quoted in USD, one standard lot moves $10 per pip. For futures, each instrument has a fixed tick value (ES is $12.50 per tick, NQ is $5, etc.). The calculator handles the unit conversions for you.
Pip and tick values are approximate. For non-USD-quoted forex pairs, exact pip value depends on the current exchange rate — the figures here assume USD account base currency. Always verify against your broker's contract specifications before trading.