Position Size Calculator ATR
FREE
Published:
11 December 2025
Current version:
1.12
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I tried the app. several times in different timeframes, but it shows different "Lot Size" reading on the same chart.
Hi Muh, thanks for your feedback.
This behavior is normal with this LITE version because the lot size is calculated from ATR on the current chart timeframe:
If you switch between M5 / M15 / H1 etc., ATR changes, so the Stop distance changes, and the lot size changes as well.
Even on the same timeframe, the value can still move slightly because ATR updates while the current candle is forming, and some symbols (indices/CFDs/crypto) can have dynamic tick value depending on price/broker conditions (the indicator uses the symbol tick size/value provided by MT5).