GBP/USD Position Size Calculator
GBP/USD — known as "Cable" — is the third most traded Forex pair. It carries higher volatility than EUR/USD, with average daily ranges of 90–130 pips. Accurate lot size calculation is critical to surviving its fast price moves.
Key Facts
POSITION SIZER
Multi-Asset Protocol
Recommended Position
Standard Lots
R:R Ratio
1:1.00
Total Risk
$500.00
How to Calculate GBP/USD Position Size
Set Your Account Risk
Enter your account balance and maximum risk per trade (0.5%–2% recommended). For a $10,000 account risking 1%, your dollar risk is $100.
Define Your Stop Loss
Enter your entry price and stop loss level. The calculator measures the distance in pips and applies the correct pip value for GBP/USD automatically.
Read Your Lot Size
The calculator outputs your exact lot size in standard lots, your R:R ratio, and your total risk amount. Adjust stop distance until the numbers fit your plan.
Position Size Formula
Risk Amount ($) = Account Balance × (Risk % ÷ 100)
SL Pips = |Entry – Stop Loss| ÷ Pip Size (0.0001)
Lot Size = Risk Amount ÷ (SL Pips × Pip Value per Lot)
The TRADE90 calculator applies the correct pip value for GBP/USD including JPY and exotic conversions automatically.