Professional-grade trading calculators and market resources — pip value, position sizing, profit/loss, margin, and currency converter. Built for forex traders, free forever.
Enter your account balance, risk percentage, and stop-loss distance to get the exact lot size you should trade.
A pip's monetary value depends on the currency pair, lot size, and current exchange rate. This calculator does the math instantly.
The position size calculator converts your risk management rules into an exact lot size for every trade. The formula: Lot Size = (Account Balance × Risk%) ÷ (Stop-Loss Pips × Pip Value). Never enter a trade without running this calculation first.
For pairs where USD is the quote currency (EUR/USD, GBP/USD, AUD/USD), pip value per standard lot is fixed at approximately $10. For pairs where USD is the base (USD/JPY, USD/CAD), pip value fluctuates with the exchange rate. For USD/JPY specifically, the pip is at the second decimal place (0.01), and value per standard lot is approximately $9.20 at current rates.
Required margin = (Trade Size × Current Price) ÷ Leverage. At 1:100 leverage on EUR/USD: a 1 standard lot position ($100,000 notional) requires $1,000 margin. Monitoring your free margin vs used margin ratio is critical — when free margin drops below 100% of used margin, a margin call is imminent.
Always calculate position size before calculating potential profit. The size determines risk; risk management is always the first decision, profit is the second.