Best Kalk Calculator Alternatives & Competitors in 2024

Qalculate! is a multiplatform multi-purpose desktop calculator.

Open Source

SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .

Get help, support, and tutorials for Windows products—Windows 10, Windows 8.1, Windows 7, and Windows 10 Mobile.

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

Numi is a beautiful text calculator for Mac.

Open Source

Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.

Browser-based notepad built for math calculations.

fxSolver is an free online math solver, equation library, graphing calculator and science/engineering problem helper. To get started, add some formulas, fill in any input variables and press "Solve."

WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.

PayPal Fee Calculator is a simple and effective free tool that allows you to calculate your PayPal...

Simple and beautiful calculator for Android. Contribute to Darkempire78/OpenCalc development by creating an account on GitHub.

Descriptive, Editable, Gesture-Based & Voice Controlled Calculator

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