Tenetize

Position Size Calculator

Size every trade to a fixed percentage of your account. Enter your risk and your stop, and get the exact lot size, margin required, and risk/reward.

Your trade

Position size
0.20 lots
20,000 units · risking $100.00
Pips at risk
50.0
Margin required
$736.67
Margin used
7.4%
Risk / reward
—

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How position sizing works

Fixed-percentage sizing keeps every loss the same fraction of your account, no matter the setup. You decide the risk first; the lot size falls out of the stop distance. That is what makes a string of losses survivable.

lot size = (balance x risk%) / (pips at risk x pip value)

Leverage and margin

Leverage does not change your risk on the trade, only the margin you must post to hold it. This tool shows both, so you can size the risk correctly and still check the position fits your margin.

Disclaimer

Educational tool only, not investment advice. Trading carries risk of loss.

Common questions

How is position size calculated?
Risk amount (balance x risk %) divided by the stop distance in pips times the pip value. It caps your loss at the chosen risk.
Does leverage change my risk?
No. Leverage only changes the margin you post. Your loss if the stop is hit is the same regardless of leverage.
What risk percentage is sensible?
Most traders use 1-2% per trade so a losing streak does not cause a deep drawdown.