Position Size Calculators

Forex Position Size Calculator

Forex lot sizing

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Position Size Tool

Forex Lot Size Console

Step 2: Review calculated pip value and broker specification ▼

Pip value is calculated from the selected pair's quote currency at 1.00 standard lot. Confirm minimum lot and volume step inside your trading platform before using the output.

Forex Lot Formula

To calculate forex lot size, use the following formula:

Position Size = (Account Balance × Risk Percentage) ÷ (Stop Loss in pips × Pip Value at 1 Lot)

Currency Pair Inputs

Forex sizing depends on cash risk, stop-loss pips and the pip value for the selected pair. Major USD-quoted pairs often use about $10 per pip per standard lot, but this can change by pair and account currency.

  • • Cash Risk: Account balance multiplied by selected risk percentage.
  • • Pip Value: The cash movement for one pip at 1.00 standard lot.
  • • Lot Step: The broker volume increment used to round the result down.

Step-by-Step Example

Say you have a $10,000 account, risk 1%, use a 50-pip stop and enter a $10 pip value per lot.

  1. 1. Determine your maximum risk: $10,000 × 0.01 = $100.
  2. 2. Calculate the risk per lot: 50 pips × $10 = $500.
  3. 3. Determine lot size: $100 ÷ $500 = 0.20 lots before lot-step rounding.

Forex Position Size Reference Guide

This forex position size calculator supports lot size calculator and forex risk calculator search intent by exposing the core model: account balance, risk percentage, stop-loss pips, pip value and broker volume rules.

Forex position sizing starts with cash risk. A trader decides how much account equity can be lost if the stop is hit, then divides that amount by the risk created by the stop-loss distance. The calculator keeps the pip value visible because not every pair behaves like a standard USD-quoted major pair.

If the account currency is not USD, the manual conversion rate translates account risk into the USD sizing basis used by the pip value field. The result is rounded down to the configured lot step so the suggested order size does not exceed the intended risk budget.

Before placing a trade, confirm your platform's minimum lot, lot step and pip value. Spread, commission, slippage, swaps and execution delays are not included unless you adjust the risk inputs manually.

Forex FAQ

How do you calculate forex position size?

Divide your cash risk by the stop-loss pips multiplied by pip value at 1 standard lot, then round down to the broker lot step.

What is pip value?

Pip value is the cash change for a one-pip move at a selected lot size. This calculator uses the pip value entered for 1.00 standard lot.

Why does account currency matter?

If account risk is held in a currency different from the pip value basis, a conversion rate is needed before lot size is calculated.

Does the calculator include spread and commission?

No. The output excludes spread, slippage, commission and swaps unless you add those costs manually to your risk assumptions.