The Average True Range (ATR) study calculates the average true price range over a time period. True range is the greatest of the following:

  • the difference between the current high and the current low
  • the difference between the current high and the previous close
  • the difference between the previous close and the current low

By default, the average true range is a 14-period Wilder's moving average of this value; both the period and the type of moving average can be customized using the study input parameters.

Input Parameters

Parameter Description
length The number of bars used to calculate the ATR.
average type

The type of moving average to be used in calculations: simple, exponential, weighted, Wilder's, or Hull.


Plot Description
ATR The Average True Range indicator.


*For illustrative purposes only. Not a recommendation of a specific security or investment strategy.