Sizing problems with export

Hello! Incompetent Rhino user here again!

In short, I export some selected curves to DWG in Rhino 7, I then open the DWG file in Illustrator - for it to be literally 1/1,000th of the size meaning that line widths become skewed.

Any advice on how to stop this from happening?

That sounds like confusing Meters with millimeters…

not exactly 1000th but its way smaller

When you wrote, ‘literally’, I actually believed you.