Forex Position Size Calculator
Calculate the correct forex lot size based on account balance, risk percentage, stop-loss pips, and currency pair pip value.
Use the Forex Position Size Calculator
Trade Parameters
%
Fill in your trade parameters and click Calculate
Recommended Position Size
0.00
standard lots
Based on your risk parameters
0.00
Mini Lots
0.00
Micro Lots
0
Units
Risk Breakdown
Max Risk Amount
$0.00
Pip Value (per standard lot)
$0.00
Pip Value (your lot size)
$0.00
Stop-Loss Value
$0.00
Risk Level
0%
—
10%
Summary
The Forex Position Size Calculator helps traders determine the precise lot size to use on any forex trade so that a losing trade never exceeds a defined percentage of their account balance. Enter your account details, choose your currency pair, set your stop-loss distance in pips, and the tool instantly computes standard lots, mini lots, micro lots, and the exact monetary risk.
How it works
- Enter your account balance and select the account currency.
- Set the percentage of your account you are willing to risk on this trade (e.g. 1%).
- Enter the stop-loss distance in pips for the trade setup.
- Select the currency pair and enter the current exchange rate if the quote currency differs from the account currency.
- The calculator outputs the position size in standard lots, mini lots, micro lots, and units, plus the exact dollar risk.
Use cases
- Determine exact lot size before entering a forex trade to enforce strict risk management.
- Compare position sizes across different currency pairs under the same risk budget.
- Back-test trade setups by replaying historical pip distances and account sizes.
- Teach new traders the relationship between lot size, pip value, and account risk.
Frequently Asked Questions
Last updated: 2026-10-05 ·
Reviewed by Nham Vu