Lot Size Calculator
Quick lot sizing for forex, gold, and indices. Enter your risk and stop loss to get standard, mini, and micro lot sizes.
Standard Lots
0.33
Mini Lots
3.3
Micro Lots
33
Units
33,333
Risk Amount
$100.00
1% of $10,000
Formula
Lots = Risk Amount / (SL pips × Pip value per lot)
= $100.00 / (30 × $10.00)
= 0.3333 standard lotsWhat is a Lot Size?
In forex, a lot is the unit of measurement for trade size. A standard lot is 100,000 units of the base currency, a mini lot is 10,000 units, and a micro lot is 1,000 units. Choosing the correct lot size is critical for managing risk.
This calculator determines the appropriate lot size based on your account balance, the percentage you want to risk, and your stop loss distance in pips.
Correct lot sizing is baked into every strategy we test, at real spreads, commission and swap.
We test strategies the hard way and publish every result. Get an email when one passes our gates.