Free Forex Tool
Forex position size calculator
Use account balance, risk percent, stop loss distance, and pip value to calculate a practical lot size before you place the trade. This is a public version of the risk workflow built into TradingForexForProfit.
How the calculator works
The calculator first converts your account balance and risk percent into a planned dollar loss.
Then it divides that planned loss by the stop loss distance and the pip value per lot to estimate the lot size.
This is why position sizing should come after the stop loss decision, not before it.
Your result
This output is only as good as the stop loss distance and pip value you enter. The trade idea still needs to fit the chart, your broader risk plan, and any prop-firm or daily drawdown rules you follow.
Why this matters
Most sizing mistakes happen when traders choose a lot size first and then try to force the stop loss around it.
A better workflow is account risk, then stop loss, then position size. That is how risk gets enforced before the trade is opened.
Related guides
Go deeper in the app
The free public calculator gives you the core sizing math. Inside the app, the calculator connects that math to account context, journal flow, daily risk, performance review, and prop-firm rules.