How to convert a drawing from inches to centimeters in Autocad?

1. Click Modify menu –> Scale.
2. At the Select Objects prompt, enter all.
   All objects in the drawing are selected for scaling.
3. Enter a base point of *0,0.
   Scaling will be relative to the world coordinate system
   origin and the location of the drawing origin will remain at the WCS origin.
4. Enter a scale factor of 2.54 (there are 2.54 centimeters per inch).
   All objects in the drawing are now 2.54 times larger,
   corresponding to the equivalent distance in centimeters.

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