Lot size calculator,
made simple.
Answer 3 quick questions and we tell you how big your trade should be, so if the trade goes wrong you only lose the amount you planned.
More settings (optional)
Only needed for the margin. Default prices are from 27 October 2026. Contract sizes differ between brokers. Check the instrument details in your platform.
Details
- Money held by the broker (margin)
- Full size of the trade
Gold with a $5,000 account
Why your lot size matters
1. Decide what you can lose
Before you trade, pick an amount you are fine losing if you are wrong. 1% of $5,000 is $50.
2. Put your stop loss
The stop loss closes the trade automatically if the price goes against you. Measure how far it is.
3. Let the calculator size it
A closer stop means you can trade bigger; a far stop means smaller. Either way you lose only your planned amount.
What is a lot?
A lot is the size of your trade. 1 lot of gold is 100 ounces; 0.10 lot is 10 ounces. The bigger the lot, the more money each move makes or loses.
What is a pip on gold?
Most traders in the Gulf count one gold pip as a $0.10 move in the price. With 1 lot, each pip is worth $10; with 0.10 lot, $1.
What is a stop loss?
An order that closes your trade automatically at a price you choose, so a loss cannot grow bigger than you planned.
How much should I risk per trade?
Many professional traders risk 1–2% of their account per trade, so a few losing trades in a row do not wipe out the account.
Is this calculator exact for my broker?
It uses the standard contract sizes. Spreads, commissions and contract sizes differ between brokers, so check the details in your platform before trading.
Want to know where to put the stop loss?
Our free seminars teach you to plan every trade: entry, stop and target.
