https://www.autodesk.com/blogs/autocad/tried-autocad-quickcalc-calculator/
Have You Tried: AutoCAD QuickCalc Calculator | AutoCAD Blog | Autodesk
Apr 8, 2020 - Want to perform calculations right from within your drawing? We're exploring the AutoCAD QuickCalc Calculator in this month's edition of Have You Tried.
triedautocadquickcalccalculatorblog
https://quickcalc.iextend.com.au/
iExtend QuickCalc
quickcalc