Free add-on application Units Conversion for AutoCAD - convert more than 750 international and historical measurement units directly inside your AutoCAD session. Go to https://apps.autodesk.com/ACD/en/Deta... or http://www.cadforum.cz/units
We have the same conversion application also for Autodesk Inventor, Revit, Fusion 360, for Android and as an extension for Google Chrome: https://chrome.google.com/webstore/de...