Forex position size calculator
Calculate the lot size that matches your account balance, risk percentage and stop-loss. Keep risk fixed before the market gets loud.
Enter trade data
Use conservative inputs. For pairs quoted in USD, the pip value of one standard lot is often close to 10 USD.
Position size
The output shows standard lots, units and the conversion into mini and micro lots.
Practical note: many traders cap single-trade risk at 0.25% to 1.0%, especially around volatile news setups.
Formula
Position size equals cash risk divided by stop-loss in pips and pip value per standard lot. This keeps risk constant when stops change.
How to use it
- Enter account size and maximum risk percentage.
- Use the stop-loss distance from your chart setup.
- Adjust pip value to your account currency and currency pair.
Coming next
This tool page is the first building block of the new Trading Spotter hub. Pip value, risk/reward and trading session tools follow next.
Example, formula and limits
Sources, method and limits
Calculators use transparent assumptions. Market modules use public reference data and external widgets. Content is educational market context, not investment advice.
Frequently asked questions
Is this investment advice?
No. Trading Spotter provides calculators, education and market context. Content is not personal investment advice and not a trade recommendation.
Is it free to use?
Calculators, market overviews and core education are public. Future offers or partner links are clearly marked.
Where does market data come from?
Market modules use public reference data, crypto spot data and external widgets. Sources and limits are stated transparently.
Why can calculators not guarantee profits?
Calculators can structure risk and sizing, but they cannot control market movement, slippage, fees or trader behavior.
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This page can be saved as a working reference or shared with other traders.
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