Our website provides a free download of AcadCalc 1.0. The most frequent installation filename for the program is: AcadCalc.exe. This free tool was originally designed by NYacad Inc. AcadCalc is included in Office Tools. The following versions: 2.0 and 1.0 were the most frequently downloaded ones by the program users.
From the developer:
AcadCalc: the program for calculations inside AutoCAD (any formats of numbers). Results of calculations can be used directly for performing AutoCAD commands: move, copy and others.
You may want to check out more software, such as AcadCalcStair, which might be similar to AcadCalc.