Sicyon provides you with an all-in-one scientific calculator usable for students as well as developers, researchers, and even professors.

ESBUnitConv provides you with a portable option for numerous types of measurement conversions.

RedCrab is a calculator with a full-screen editor that can perform precise technical, scientific and financial calculations.

CalcTape provides you with a usable real-world calculator that allows for easy notations and corrections to any of your calculations.

TheCalcMan is a free, small, no installation calculator replacement.

Moffsoft FreeCalc gives you a simple but useful calculator with some neat features and mild customization possibilities.

Windows Calculator provides you with a powerful but simple calculator.

Calculor enables quick computations with instantaneous answers as you type.

Learn to solve equations step-by-step while gaining a better understanding of fundamental concepts in pre-algebra, algebra, trigonometry, physics, chemistry, and calculus.

fx-Calc is an advanced calculator that allows straightforward and intuitive handling of complex mathematical tasks.

Alternate Calculator is a freeware calculator that has different numbers and currency conversions.

DreamCalc Scientific Graphing Calculator is a very realistic desktop calculator that includes a full range of scientific functions.

Alternate Math Solver is a freeware tool to solve equations that contain a variable X towards this variable. The resulting equation will look like X=...

CalcPad is a portable smart notepad that calculates answers based on what is typed in.

A very good free calculator for Windows.

Calculator is a small as it says calculator written in C++.

Mini Calculator is a useful and straightforward calculator that has two views - basic and extended one, a simple loan calculator, and full-color control for almost all its items.

Calcpad is a free and flexible programmable mathematical and engineering calculator that includes an HTML report generator.

Kalkules is a universal scientific freeware calculator with some nontraditional functions, useful for anyone but particularly for high school and university students.

Past is free software for scientific data analysis, with functions for data manipulation, plotting, univariate and multivariate statistics, ecological analysis, time series and spatial analysis, morphometrics and stratigraphy.

CCalc gives you an efficient Command Line calculator that offers a wide range of functions, including arithmetic operations, algebraic calculations, and Boolean functions.

Proportional Calculator allows you to scale an object proportionally, given the height and width of an object and one or more limiting factors ( square footage, max-height, or max-width).

Old Calculator for Windows 10 from Windows 7 and 8 brings back the classic calculator for those who miss it or just for nostalgia.

Convert for Windows can convert most measurements including distance, temperature, volume, time, speed, mass, power, density, and more.

Alt1 Calculator is a minimalistic but full-featured scientific calculator for your desktop.

Pc Calculator is an original note and formula editor combined with an advanced and robust scientific calculator.

Qalculate! Portable is a versatile, cross-platform calculator for desktops that is Open Source. Installer is also available.

ConvertAll Portable offers a unique unit converter that allows you to convert a wide variety of units, regardless of whether they are commonly understood or used by others.

Plus42 is a programmable calculator based on Free42.

WBigCalc is an advanced scientific calculator designed for users who require exceptionally high levels of precision in their calculations.

rpCalc is a feature-rich Open Source desktop calculator.

Wabbitemu creates a Texas Instruments graphing calculator right on your Windows or Android device.

Qalculate! is a powerful math software with user-friendly tools like currency conversion and percent calculation. Portable version is also available.

Euler Math Toolbox (EMT) is a powerful Open Source math program combining numerical and symbolic tools.

ConvertAll is another unit converter, but with a twist; the units you convert don't need to make sense to anyone else. PortableApps version is also available.

cCalc is a portable, Open Source binary calculator capable of using x/86 instructions.

SpeedCrunch is an Open Source, cross-platform scientific calculator that features a fast, keyboard-driven user interface with some useful features.

Free42 HP-42S Calculator Simulator is an Open Source recreation of the HP-42S Scientific Programmable Calculator and HP-82240 Printer. Plus42 is also available.

RedCrab Math is a more advanced development of the popular RedCrab calculator allowing for precise technical, scientific and financial calculations.

Smart Math Calculator easily allows you to do all your calculations in one convenient place.

Graphing Calculator 3D is an advanced high-quality 3D graphing calculator that enables you to plot any number of mathematical equations or coordinates.