The software application recognizes and processes most commonly used units of measurement. Every model or drawing has a default units system. Values that you enter in dialog boxes are assumed to be in the default units, unless you specify a unit name.
The default units system is specified in Application Options. They are automatically assigned when you create files with templates.
After the units are set when you create a file, you can change them using document settings. As you enter values into dialog boxes they are assumed to be in the default units system for the file. You can override the default units for a single entry by adding the unit name after the value. For example, 0.05 in. or 3 mm.
When you override the units, the software displays your entry in the default units. However, when you open the dialog box for editing, the units shows as you entered them.
When you change the units system, all existing values in the file convert to the new units. All subsequent entries are in the new units.
In drawings, the dimension style, and the active drafting standard set the units system. Edit the dimension style or drafting standard to change the units system.