You can set the default paper and layout units, distance units, and area units as a software preference.
To set your default units:
- On the PRO tab, click Options, and System Settings to open the System Settings Preferences dialog box.
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In the Units panel, select from the following drop-down lists:
- Paper and Layout Units - Specifies the units when you measure the size of objects in a layout and the size of paper in the Print dialog boxes. Choose a unit of measurement from the drop-down list. The default is set to inches. You can choose: inches, picas, points, millimeters, and centimeters.
- Distance Units - Specifies the default distance units you want to use for all subsequently created maps. Options include: US Survey feet, yards, rods, chains, miles, nautical miles, millimeters, centimeters, meters, and kilometers.
- Area Units - Specifies the default area units you want to use for all subsequently created maps. Options include: square inches, square links, square feet, square yards, square rods, perches, square chains, roods, acres, square miles, square nautical miles, square millimeters, square centimeters, square meters, hectares, and square kilometers.
- Click OK to close the dialog and save your settings.