To do this in Windows 7, follow the directions below: If you want to use a metric ruler in PowerPoint, you must go into your Windows settings and make the change there. If you prefer to view and work with metric units, this setting can be changed from within Microsoft Word and Excel (via Options > Advanced > Display) but not from within PowerPoint. The same is true of the other Microsoft Office applications. By default, the rulers in PowerPoint display measurement in inches.
