By default, the Measure toolbar provides ready access to the Measure and Calibrate tools as well as the measurement modes. Tools commonly found on this toolbar are described below. For a complete list of tools that can be placed on a toolbar and more information about customizing them, see Tools and Toolbars.
If the toolbar is currently hidden, go to Tools > Toolbars and select it to show it.
Calibrate: Calibrates the document's scale to allow accurate measurements to be taken.
Length (SHIFT+ALT+L): Calculates a singular linear measurement.
Polylength (SHIFT+ALT+Q): Creates specialized markups that calculate multiple, linear measurements as well as their cumulative length.
Area (SHIFT+ALT+A): Calculates the area of a simple rectangle or of an irregular, polygonal shape.
Volume (SHIFT+ALT+V): Calculates the volume of an area with a defined depth.
Dynamic Fill (J): Automatically creates Spaces and measurement markups from any shape on the content layer of a drawing.
Count (SHIFT+ALT+C): Places a markup for each mouse click, associating a running total of counts with each markup as it is placed.
Diameter (SHIFT+ALT+D): Calculates the diameter of a circular shape.
Angle (SHIFT+ALT+G): Measures a given angle as defined by three points.