Position size calculator
Work out how many contracts or lots keep your loss on a trade at the amount you choose. Futures use exchange tick values; forex assumes USD-quoted pairs.
Frequently asked questions
How do I size a position for a prop firm account?
Pick the dollar amount you are willing to lose on one trade (a small slice of your drawdown), divide it by the cost of your stop (stop distance times value per tick or pip) and round down to whole contracts or lots.
How much should I risk per trade on a funded account?
Many traders risk well under 1% of the account or a small fraction of the maximum drawdown, because a trailing drawdown can shrink your room quickly. The right number depends on your strategy and the firm’s rules.
Do the forex values work for every pair?
The forex mode assumes a pair quoted in US dollars (such as EUR/USD) where one pip on one standard lot is worth about $10. For other pairs the pip value differs; check your platform.
These calculators use simplified, textbook versions of each rule and are not financial advice. Always read the firm’s own rules.
More: Drawdown calculator · Payout calculator · Choosing a prop firm