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SpeedCrunch logo

SpeedCrunch is a free and open source, multi-platform fast and high-precision scientific calculator controlled from the keyboard


  • SpeedCrunch is a high-precision, powerful and fast scientific calculator. It has an easy-to-use interface;
  • The program is controlled via the keyboard;
  • Many built-in libraries are available: formulas (algebra, geometry, unit conversion, electronics and radio waves), constants (astronomy, atomic and nuclear physics, particle mass, and others), functions (abs, bin, cos, and others);
  • SpeedCrunch displays the results as you type;
  • Previous inputs and results are displayed in a scrollable history and can be easily recalled. Customizable syntax highlighting makes it easy to detect errors;
  • SpeedCrunch supports the accuracy of calculations up to 50 decimal places;
  • Unlimited variable storage for advanced calculations;
  • There is an automatic completion of functions and variables, which allows you to speed up the execution of your task;
  • It is possible to get help (F1);
  • There is a history of all calculations in the log;
  • It is possible to save/load the session;
  • Data export/import (plain text, HTML);
  • An on-screen keyboard is available;
  • It is possible to customize the appearance of the interface: add libraries
  • Support for full-screen mode;
  • Support for the “Over all windows ” function and copying the result to the clipboard;
  • It is possible to customize the appearance: choose a color scheme and font.

Screenshots Software


The software SpeedCrunch is available for installation on Linux, Windows and macOS.

Installation methodOS
DebUbuntu* 16.04/18.04/19.04/20.04, Linux Mint 18/19, Debian
RPMopenSUSE, Rosa Linux, Mageia, ALT Linux, Fedora, CentOS, Red Hat Enterprise Linux and others
FlatpakUbuntu, Linux Mint, Debian, Arch Linux, Fedora, CentOS, KDE Neon, openSUSE, elementary OS, Manjaro, Red Hat Enterprise Linux
AppImageUbuntu, Fedora, openSUSE, CentOS, elementaryOS, Linux Mint and others

*Ubuntu (GNOME), Kubuntu (KDE), Xubuntu (XFCE), Lubuntu (LXDE)

Install Software via Deb package

Install Software via RPM package

Install Software via Flatpak package

flatpak install flathub org.speedcrunch.SpeedCrunch

Install Software via EXE package on Windows

Install Software via DMG package for macOS

Software Information

Language Interface:English, Russian, Deutsch, Spanish, French and others
Description version:0.12
Developer:The SpeedCrunch Developers
Programming language:C++, Qt
License:GPL v2
Software website:speedcrunch.org

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