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Forex Position Size Calculator

Work out forex position size instantly with clear inputs, formula shown and shareable results.

About Forex Position Size Calculator

Working from rates rather than pips, the position size is the risk budget divided by the rate distance to the stop. This handles any pair and any pip convention without conversion errors.

Formula

Position size

Units = (balance × risk %) / |entry rate - stop rate|

Worked example

With the default values below, Forex Position Size Calculator returns Position Size In Units of 1,142,857. Change any input above and every figure here is recalculated in your browser.

Inputs used

Account Balanceminimum 0
800,000
Risk Per Tradeaccepts 0.05–20 %
1 %
Entry Rateaccepts 0–100,000
1.095
Stop-Loss Rateaccepts 0–100,000
1.088

Results

Position Size In Units
1,142,857
Amount At Risk
$8,000.00
Pips Between Entry And Stop
70.0
Notional Position Value
$1,251,428.57

Step by step

  1. 1Values used
  2. 2Position size
  3. 3Position Size In Units= 1,142,857
  4. 4Amount At Risk= 8,000.00
  5. 5Pips Between Entry And Stop= 70.0
  6. 6Notional Position Value= 1,251,428.57

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Figures are estimates for planning only. Market returns are not guaranteed, and rates, limits and tax rules change. This is not financial or tax advice — speak to a qualified adviser before acting.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Figures are estimates for planning only. Market returns are not guaranteed, and rates, limits and tax rules change. This is not financial or tax advice — speak to a qualified adviser before acting.

Frequently Asked Questions

Why work in rates instead of pips?

It avoids pip convention mistakes across pairs, particularly yen crosses.

Should the spread be included?

Yes. Add it to the stop distance, otherwise the real risk exceeds your budget.

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