Download Qalculate a new, functional and powerful calculator for Windows that you can use as an alternative to the default Windows calculator. The graphic environment of this software is very beautiful and attractive and you can easily perform all kinds of calculations in it. Unlike the default Windows calculator, this software has a set of dozens of advanced mathematical functions that you can use for all kinds of calculations. Exchange rate conversion, percentage calculation, unit conversion, physical constants, derivative and integral calculations, etc. are among the most important functions of this advanced calculator. 32 bit from Direct link