It is important to know the units of your drawing while working on AutoCAD. AutoCAD units are most time what you should care about before starting any project. The default units is set to inches.
We have a good article that will help you handle your settings in AutoCAD when you have just started.
It is possible to draw in AutoCAD using the following units:
- US Survey Feet
- Light years
How to change units in AutoCAD
To change the units in AutoCAD:
Type Units and Hit ENTER on your keyboard, the following window should pop up.
Click on the drop down menu under Insertion scale, select the appropriate unit and click on OK.
Hope that did the trick.