Show rulers by choosing View→Rulers→Show Rulers or press Ctrl+R (Windows) or cmd+R (Mac). Then right-click (Windows) or Control-click (Mac) the ruler to change the measurement increment to an increment you’re more familiar with.

How do I scale without distortion in Illustrator?

Currently, if you want to resize an object (by clicking and dragging a corner) without distorting it, you need to hold down the shift key.

How do you scale strokes and effects in Illustrator?

Scaling an Object and the Stroke:

Open your Transform palette, and click on the options in the upper right. You need to make sure “Scale Strokes and Effects” is “checked.” It works like a toggle switch. If it’s unchecked, and you click on it, the menu will disappear, and it will be checked.