High precision scientific calculator with full support for physical units (web and terminal versions).


Google Calculator is described as 'Calculator provides simple and advanced mathematical functions in a beautifully designed app' and is a Calculator in the education & reference category. There are more than 100 alternatives to Google Calculator for a variety of platforms, including Android, Windows, Web-based, Mac and iPhone apps. The best Google Calculator alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Google Calculator are Qalculate!, Fossify Calculator, OpenCalc and yetCalc.
High precision scientific calculator with full support for physical units (web and terminal versions).


Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!




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...




Calculator is an application that solves mathematical equations and is suitable as a default application in a GNOME Desktop environment.




Qaltex is a tape-like calculator with straightforward interface and a lot of features. It is inspired by many other similar applications, but solves their disadvantages and at the same time it is empowered with some unique options and widgets.








Scientific calculator with arbitrary precision and portrait and landscape mode. Fraction and periodic numbers support. Looks like a real calculator! The calculator has up to 100 digits of significand and 9 digits of exponent.




Calculator is a basic calculator application made by Apple Inc. and bundled with its macOS, iOS, and watchOS operating systems. It has three modes: basic, scientific, and programmer. The basic mode includes a number pad, buttons for adding, subtracting, multiplying, and...




RealCalc Scientific Calculator Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing. Looking for fractions? Degrees/minutes/seconds? Landscape mode? You need RealCalc Plus. See elsewhere on this page for the l.


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.

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




Calcul.io offers realtime calculator with notepad like interface and advanced features like unit conversions, currency rates or date time math.
