Lot Size Calculator
Calculate the perfect lot size for your prop firm challenge based on your risk tolerance.
Lot Size
0.2
Dollar Risk
$100
Pip Value
$10
Start your FTMO challenge with proper risk management
Frequently Asked Questions
What is a lot size in forex trading?+
A lot is the standard unit of measurement in forex. A standard lot is 100,000 units of the base currency. Mini lots are 10,000 units and micro lots are 1,000 units. Proper lot sizing is critical for prop firm challenges as it directly controls your risk per trade.
How do I calculate lot size for FTMO?+
For FTMO, you should risk a maximum of 0.5–1% per trade. Divide your dollar risk by (stop loss in pips × pip value). For example: $100,000 account × 1% risk = $1,000 risk ÷ (20 pips × $10/pip) = 5 lots.
What lot size is safe for a prop firm challenge?+
Most prop firm traders use 0.5–1% risk per trade. This means on a $100,000 account, risking $500–$1,000 per trade. Use our calculator to find the exact lot size based on your stop loss distance.
Why does lot size matter for FTMO and funded accounts?+
Prop firms like FTMO have strict daily loss limits (5%) and max drawdown limits (10%). Oversizing positions is the #1 reason traders fail challenges. Proper lot sizing ensures you never accidentally breach these limits.
What is pip value and why does it vary?+
Pip value is the dollar amount gained or lost per pip of price movement per lot. For USD-quoted pairs (EUR/USD, GBP/USD), 1 pip = $10 per standard lot. For cross pairs, it varies with exchange rates. Gold (XAU/USD) has a pip value of approximately $10 per standard lot.