Calculators

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.

SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.

Introducing Fossify Calculator – your versatile and efficient tool for all your calculation needs. Enjoy a stylish, modern design paired with powerful functionality, perfect for both simple calculations and more complex tasks like currency conversion.

Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).

SageMath is a free open-source mathematics software system licensed under the GPL. It builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and many more.

A simple and beautiful calculator for Android.

Privacy focused calculator app built with MD3.

The Unit Converter app: easy, immediate and multi-platform.

Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.

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

Yet another calculator designed and developed for Android.

Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks. Numi is not limited to simple calculations, it can solve expressions of any complexity, with...

A simple but powerful notepad calculator which evaluates expressions as you type.

Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?

Calcpad is a lightweight mathematical platform for cloud and desktop. It parses simple text scripts and converts them into professional Html reports. Supports complex numbers, variables, functions, graphing, units and numerical methods.

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

Discover the ultimate calculator experience with our beautifully designed app, featuring 60+ stunning color themes to match your style. Whether you're tackling complex scientific equations or simple everyday calculations, our powerful and user-friendly interface makes it all...

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

Open-source calculator app based on Windows Calculator, available for desktop, mobile, and web. Supports scientific, unit conversion, and programming functions.

A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.

Calculator, converter and so much more!.

Simply point your camera toward a math problem and Photomath will magically show the result with a detailed step-by-step instructions.

Calculator++ is an advanced, modern and easy to use scientific calculator.

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.

Next generation notepad-based calculator, built with extendibility and privacy in mind. Works on Windows, macOS and Linux.