Wolfram Alpha
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...
High precision scientific calculator with full support for physical units (web and terminal versions).
high precision scientific calculator with full support for physical units.
evaluation of mathematical expressions parsing and handling of physical units (all si units, imperial units, timebased units, ..) explicit unit conversions ("60mph to m/s", "6mbit/s * 1.5h to gb") physical constants (speed of light, plancks constant, ...) userdefined variables syntax highlighting, tab completion, readline interface web and terminal versions
Productivity Business and Commerce Education and Reference
web-based physics console-based scientific-calculator units-converter maths
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...
Freemium Android iPhone iPad Web Kindle Fire Windows Phone
SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited Variables, Syntax Highlighting, Functions, with...
Free Open Source Mac OS X Windows Linux
Calculator provides simple and advanced mathematical functions in a beautifully designed app.
Free Android Android Tablet Chrome OS Web Android Wear
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.
Free Open Source Windows Linux Xfce
RealCalc Scientific Calculator Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing.
Freemium Android
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.
Free Windows
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).
Free Open Source Linux BSD Xfce
Calculator for the GNOME Desktop Environment, formerly known as gcalc (and gcalctool CLI).
Free Open Source Linux GNOME
Calculator web-app for JustBrowsing project. Basic 4 function calculator plus square root and exponent functions. Supports keyboard shortcuts and made to resemble a...
Free Open Source Mac OS X Windows Linux Chrome OS Web
Simple yet very effective calculator with print capabilities and log registration.
Free Mac OS X Windows Linux Chrome OS
The collection of unit measurement converters along with conversion factor, ratio, formula and tables
Free Web
Physics Formulas Calculator comprises a selection of 119 different calculators that will simplify calculations which have given you headaches so far. Complex...
Commercial Mac OS X
Mi Calculator will do the math for you. Regular, scientific, and mortgage calculators, as well as currency and unit converters are all here in one place. 1.Edit history...
Free Android Android Tablet