MT4 ATR Indicator: How to Add and Use Average True Range

The ATR (Average True Range) is a built-in MT4 volatility indicator that plots as a single line in its own window. It measures the average range price travels per bar over a set period — a higher ATR means wider, more volatile bars; a lower ATR means the market is tightening. Crucially, the ATR shows how much price is moving, not which direction, so traders use it mainly to size stop-losses and positions rather than to pick entries.

How to add the ATR in MT4

1. 1

   Open the indicator

   In MT4, click Insert ▸ Indicators ▸ Oscillators ▸ Average True Range.

2. 2

   Set the period

   Leave the period at the default 14 or adjust it. A shorter period reacts faster to recent ranges; a longer one is smoother.

3. 3

   Click OK

   ATR plots in a separate window below your chart as a single line. A higher line means wider recent bars (more volatility); a lower line means tighter bars.

How to read the ATR

• It's volatility, not direction — the ATR rises when bars get wider whether price is rallying or falling, so it never tells you to buy or sell on its own.
• Rising vs falling — a rising ATR signals expanding volatility (bigger swings); a falling ATR signals quieter, tighter conditions.
• Sizing stop-losses — a common use is placing a stop-loss a multiple of ATR away from price (for example 1.5× or 2× ATR), so the stop reflects how much that instrument is actually moving instead of a fixed, arbitrary distance.
• Position sizing — once your stop distance is set from the ATR, you can work out a lot size that keeps your risk consistent. See position sizing and the lot size calculator.

Limitations

Related

See the best MT4 indicators guide. Because ATR-based stops feed risk management, you'll also want how to set a stop-loss and take-profit in MT4, position sizing in forex, and the lot size calculator.

Frequently asked questions