Position size from the average daily range.
Educational tool only — not financial advice. Verify figures with your broker.
The ADR Position Size Helper sizes a forex position from an instrument's average daily range rather than a fixed pip stop. It answers: if my stop is a chosen fraction of the ADR and I want to risk a set percent of my account, how large a position does that imply? It returns the stop distance in pips, the dollar risk amount, and the resulting position size.
Stop distance in pips is the average daily range multiplied by the stop fraction. The risk amount is account equity times the risk percent. Position size is then the risk amount divided by (stop distance in pips times pip value per lot) — so a wider stop or larger pip value produces a smaller position for the same dollar risk. It is straightforward division, not a prediction.
Using the average daily range for position size ties your stop to how much the pair typically moves, which keeps the stop from being unrealistically tight in a volatile pair or needlessly wide in a quiet one. It is one systematic way to set a stop; a structure-based stop from the chart is another.
Common choices are between 0.3 and 1.0 of the ADR — a smaller fraction gives a tighter stop and a larger position for the same risk, but a higher chance of being stopped by normal intraday movement. The tool lets you compare fractions directly.
It caps the modeled loss only if the stop fills exactly at your stop price. Slippage, gaps, and weekend moves can produce a larger loss than the risk amount shown.
Keep in mind: This helper only translates an ADR-based stop and a risk percent into a lot size. Average daily range is a historical average — actual daily ranges vary widely, and slippage or gapping can make the real loss larger than the risk amount displayed. It says nothing about whether the trade will win.