Scaling Text and Dimensions (MSPACE)

To set the overall dimension scale

1. From the Dimension menu, choose Style.
2. In the Dimension Styles dialog box, choose Geometry.
3. In the Geometry dialog box under Scale, enter a value for the overall scale.
4. Set the scale based on the scaling between the current model space viewport and paper space by selecting Scale to Paper Space.
5. Choose OK to exit each dialog box.

Dimension toolbar:
Command line equivalent: DDIM