Convert CAD Units & Grid

I have a structural plan drawn in AutoCAD where every dimension is shown in millimetres and the main grid sits at the centre of the structure. All I need is a clean, accurate conversion of those dimensions... (Budget: ₹400 - ₹750 INR, Jobs: 3D Design, 3D Drafting, 3D Modelling, 3D Rendering, AutoCAD, Building Architecture, CAD/CAM, Drafting)