galculator is a GTK 2 / GTK 3 based calculator with ordinary notation/reverse Polish notation (RPN), a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD).

Kalk Calculator is described as 'Kalk is a convergent calculator application built with the Kirigami framework. Although it is mainly targeted for mobile Linux platforms, it can also be used on the desktop' and is a Calculator in the education & reference category. There are more than 100 alternatives to Kalk Calculator for a variety of platforms, including Android, Windows, Web-based, Mac and iPhone apps. The best Kalk Calculator alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Kalk Calculator are Fossify Calculator, Qalculate!, OpenCalc and Calc You.
galculator is a GTK 2 / GTK 3 based calculator with ordinary notation/reverse Polish notation (RPN), a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD).

PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a...




OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly.








Introducing Best Loan Calculator, using methods trusted by financial professionals for years. It’s as easy to use as a regular calculator and helps with auto loans, mortgages, and other financing.




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




A text calculator for natural language expressions, variables & unit conversions, with a vim-style TUI. Inspired by Numi.


As a kid, I loved playing with a calculator. Whether a calculator watch or a TI-89, it offered an intoxicating command over impossibly large numbers and could be hacked to share messages with friends. Somewhere along the way, the calculator became another boring tool.







Cuneo is a simple and straightforward app that lets you calculate and convert anything you might encounter in your daily life. Being designed like a widget, Cuneo gets out of the way and is best used floating over a maximized window so you can focus on your actual tasks and not...




NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.




Calcbot is a simple and beautifully designed calculator for your iPhone, iPod touch and iPad. You’ll never open the built-in Calculator app again.


