Forex tool
Forex position size calculator
Size a forex position from account balance, a risk percentage, and stop-loss distance in pips. Pip value follows the same conversion rules as the pip-value calculator. This page does not fetch market prices and does not use leverage to pick a size.
What position size means
Position size is how many lots (or units) you would hold so that a stop of a given pip distance uses about the risk amount you set. It answers “how large a position?”, not “how much margin is required to open it?”
Account balance and risk %
Risk amount is account balance × risk %. The percentage chips are input shortcuts only. They are not a recommendation, a “safe” level, or a 2% rule. You can type any positive percentage the calculator accepts.
How stop loss changes size
A wider stop in pips means a smaller position for the same risk amount. This version uses pip distance only. Entry and stop prices are not converted automatically.
Why pip value is required
Stop distance in pips must be turned into money. That uses pip value for 1.0 lot, then scales to the calculated size. If the account currency is not the quote currency, enter the same kind of conversion the pip-value calculator uses.
Position size is not required margin
Position size is how large the trade is. Required margin is how much account funds a broker would set aside to open that trade, which depends on leverage. Use the margin calculator for that figure. Leverage is not an input here.
How to read the result
The headline is lots after flooring to the lot step. Position units are those lots times contract size, in the base currency. Expected loss at the stop is recalculated on the rounded size, so it can be slightly under the risk amount. That is intended.
This is not a guaranteed loss
Expected loss at the stop is a calculation from the pip distance and pip value you entered. It is not a locked-in loss. Slippage, gaps, spread, commission, and swap are not included. A real fill can differ.