You can use the horizontal and vertical rulers in Word to align text, graphics, tables, and other elements in your document.
Show or hide the rulers
To show the rulers, on the View tab, check the Ruler box. To hide rulers, uncheck the Ruler box.
The horizontal ruler displays in Print Layout and Draft views. The vertical ruler only shows in Print Layout view.
If the vertical ruler doesn't show, make sure you're in Print Layout view. If it still doesn't show, you might need to turn the ruler on. On the Word menu click Preferences > View (under Authoring and Proofing Tools). Then, in the View dialog box, check the Vertical ruler box.
Change the unit of measure
You can change the unit of measurement displayed on the rulers, to do this:
On the Word menu, click Preferences > General (under Authoring and Proofing Tools).
In Show measurement in units of, select the unit of measurement you want to use.