MyScript Calculator Alternatives for Windows

Hissab is a simple and intuitive calculator, unit-convertor and productivity application.

A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like:

Sicyon is an all-in-one scientific calculator for every student or professor, researcher or developer - everybody doing physics or chemistry / science or engineering using formulas and tables of constants.

Do you really need your calculator's on-screen number pad? (You know, the virtual keyboard?)

CrossCalc is day to day Scientific Calculator that can be used on all your devices. It respects your privacy and does not show any ads.

Free scientific calculator which saves you time and frustration by providing unique easy to use tools.

Multi Sum Calculator is a portable tool that calculates the sum of multiple values!

XCALC is my little RPN calculator completely free to use, and still downloadable. XCALC is now a DEAD project. No work has been done on this project since 2012, and nothing more will be done either.

An easy to use scientific calculator with many advanced features to help you solve algebra, trigonometry, and engineering math problems. The calculator comes with six attractive color schemes and a side bar that slides open for additional functionality.

Rule of 3 Calculator is a portable tool that allows you to apply the mathematical Rule of Three in an easier, faster and more practical way!

Multi Share Calculator is a portable tool that allows anything to be shared proportionally!

EBTCalc is a Reverse Polish Notation (RPN) calculator that can have custom buttons. Custom buttons are programmed in Javascript with a convenient editor. EBTCalc runs on Windows 10, OSX, and Linux as well as Android. EBTCalc is open source.