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...

Freemium Android iPhone iPad Web Kindle Fire Windows Phone

Calculator

Calculator provides simple and advanced mathematical functions in a beautifully designed app.

Free Android Android Tablet Chrome OS Web Android Wear

RealCalc Scientific Calculator

RealCalc Scientific Calculator Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing.

Freemium Android

handyCalc

handyCalc is a powerful calculator with automatic suggestion and solving which makes it easier to learn and use. With almost all the features you can imagine on a calculator, waiting for you to explore.

Free Android

HEXelon MAX

HEXelon MAX is a science calculator. It solves math expressions like: Sin(Pi)-Root(-8;3)+3. Exchange rates table and currency converter are update from Internet by one click.

Free Windows

GNU Units

The Units program converts quantities expressed in various scales to their equivalents in other scales. The units program can handle multiplicative scale changes as well as nonlinear conversions such as Fahrenheit to Celsius or wire gauge.

Free Open Source Linux

Insect

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

Free Open Source Mac OS X Windows Linux Web Self-Hosted

Moffsoft FreeCalc

Moffsoft FreeCalc is the ideal replacement for your standard Windows calculator - with adjustable size, visible memory value and digit groupings, this free calculator...

Freemium Windows

eCalc Scientific Calculator

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...

Commercial Mac OS X Windows

Calculate

A math expression calculator with persistent memory for variables and functions. Any JavaScript expression can be evaluated. - Click the C button to clear the output...

Free Mac OS X

Oficalc

Complete calculus tools, easy to use and full of functions. Oficalc is, basically, a scientific calculator that may help you with mathematical calculus and that...

Free Windows

lwty.org

worksheets or practice exercises, calculators & answer sheets to engage the grade school students to learn, practice, test & verify the answers themselves to...

Free Personal Web

UseTool

UseTool combines converter and calculator in one app and lets you customize the interface by your own taste. We tried to pick for you the most frequently converted...

Free Android

errProof

The website has a lot of useful and unique tools.

Free Web

Getcalc

getcalc.com is a simple, intuitive & robust Online Calculators & Converters Application to perform simple to more complex math, science, finance, engineering...

Free Web

Physics Formulas Calculator

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

ThinkCalculator

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

Free Web

Mi Calculator

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

Calcuverter

Calcuverter is a calculator and unit converter in one. Furthermore, you can enter queries in plain English. Normal desktop calculators always seemed counter-intuitive to...

Free Open Source Windows Linux