Forex Lot Size Calculator
Instantly calculate your forex lot size from a fixed risk amount and stop-loss pips. Built for speed and perfect for scalpers.
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Why Use a Quick Forex Lot Size Calculator?
In fast-moving markets, you don't always have time to enter your full account balance, risk percentage, and exact price levels just to find your position size. A quick lot size calculator streamlines this process by asking only for your fixed dollar risk and stop-loss distance in pips.
Whether you're scalping the 1-minute chart or trading a news breakout, our free forex lot calculator gives you the exact lot size instantly. With quick-select buttons for common risk amounts and stop-loss sizes, you can calculate your position in seconds and execute your trade without hesitation.
Built for Speed
Calculate lot sizes instantly with minimal inputs
Fixed Dollar Risk
Perfect for traders who risk a set dollar amount per trade
1-Click Copy
Copy your calculated lot size instantly to paste into your broker
Multi-Asset Support
Automatic pip value calculation for forex, gold, and silver
Frequently Asked Questions
What is a forex lot size?
A lot is the standard unit size of a transaction in forex trading. A standard lot is 100,000 units of currency, a mini lot is 10,000 units, and a micro lot is 1,000 units. Your lot size determines how much each pip movement is worth in your account currency.
How does the quick lot calculator work?
The calculator takes your desired risk amount (e.g., $50) and divides it by the product of your stop-loss pips and the pip value for the selected currency pair. This gives you the exact lot size to trade so you don't exceed your risk amount.
Why use a quick lot calculator instead of a position size calculator?
A quick lot calculator is designed for speed. If you already know exactly how many dollars you want to risk (e.g., a fixed $50 per trade) rather than a percentage of your account balance, this tool gives you the lot size instantly with fewer inputs.
Does this work for indices and commodities?
Yes, our calculator supports forex pairs as well as popular commodities like Gold (XAUUSD) and Silver (XAGUSD), automatically adjusting the underlying pip value formulas.