archCalc-construction calculator works standalone or in CAD software.
Edit By BS Editor: archCalc is a mixed unit Decimal and fraction construction calculator. It allows one to enter dimensions in standard english and metric units of measurement, perform basic calculations, convert Between units, keep track of a series of operations, and easily solve for a leg or slope of a right TRIANGLE.

archCalc works as a standalone calculator or in conjunction with other programs, calculating stair risers in CAD software, or aiding in takeoffs with a Spreadsheet. archCalc floats above applications allowing one to work with it as if it were a part of the active application. you can free download ArchCalc 1.9.1 now.