Gnome calculator!

Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.

Qalculate! is a multi-purpose desktop calculator for GNU/Linux and Windows. It is small and simple to use but with much power and versatility underneath. Features include customizable functions, units, arbitrary precision, plotting, and a user-friendly interface (KDE or GTK+).

Windows Calculator, commonly known as Calculator from the application's title bar, is a calculation application included in all versions of the Microsoft Windows operating system. It can be activated by the command "calc" on most Windows systems.

Calculator is a simple 4 function calculator, with a panel that has more advanced functions when you need them. It includes history, real time graphing, base conversion, and more. It also comes with a lockscreen widget, a floating calculator, and a wear app so you can use whichever is most convenient. The goal is a simple and uncluttered calculator.

Omni Calculator is a startup aiming in solving all (hence "omni" in the name) small math problems you have in your everyday life. All of their calculators offer unparalleled ease of use and functionality. They work in real time and can solve for any variable. You are able to share the result with your friends and co-workers. They can be used on web, mobile or embedded on external websites with a slick, fully functional calculator widget.

Think calculator for Finance, Math, Geometry, Converter, Physic & Chemistry, Webtoolsm Date and time and more

Calculator with log and printing capabilities.

High precision scientific calculator with full support for physical units.

errProof offers a collection of web-based unique tools for any user

Calculator software try too hard to imitate the real thing. They end up big and clunky and their limitations are carried on. Kalq is a user experience experiment to discover an elegant solution to everyday calculations.

EdenMath is a scientific calculator which does standard arithmetic, probability, and trigonometric functions.

Physics Formulas Calculator comprises a selection of 119 different calculators that will simplify calculations which have given you headaches so far. Complex calculations, such as Force, Static Friction and others listed below will be handled easily with this app. > Force> Work> Total Work> Power with Work> Power with Displacement> Power with Velocity> Kinetic Energy> Potential Energy> Centripetal (Centrifugal) Acceleration> Concave Mirror Magnification> Centripetal Force> Circular Velocity> Velocity> Average Velocity> Displacement> Kinetic Friction> Static Friction> Newton Law of Gravity> Kepler Third Law> Gravitational Acceleration> Hooke Law> Elastic Potential Energy> Newton Second Law of Motion> Impulse with Velocity> Impulse with Time> Momentum with Velocity> Momentum with Time...> And Many More »

A calculator with the basic functions and a customizable widget.