SpeedCrunch

SpeedCrunch 1.1

A high-precision scientific calculator featuring a fast, keyboard-driven user interface.

  • By SpeedCrunch
  • Open Source
  • Updated Oct 20, 2026
Download for Windows

About SpeedCrunch

SpeedCrunch is a high-precision scientific calculator.
It features a syntax-highlighted scrollable display and is designed to be fully used via keyboard.
Some distinctive features are auto-completion of functions and variables, a formula book, and quick insertion of constants from various fields of knowledge.
It is available for Windows, OS X, and Linux in a number of languages.

What's new in 1.1

What's new in 1.1
- Functions
- Constants and units
- Input
- Results
- Sessions and settings
- Appearance and panels
- Keypad
- Other improvements
Functions
- Add root(n; x) for nth roots, including negative values and quantities with units. For example, root(5; -32) returns -2.
- Fix factorials in user-defined functions, such as f(n) = n!.
Constants and units
- Search constants by name or unit with Ctrl+Space. Select a result with the arrow keys and insert it with Enter, Tab, or a click.
- Improve searching and keyboard selection in the Constants panel.
- Correct the units of the muon, proton, and neutron energy equivalents.
- Allow powers of grouped quantities, such as (2[m])^2.
- Correct results shown in J/m² and J/m³ when using prefixed units.
Input
- Fix undo and redo, and copy and paste.
- Fix clipped text and excess space in wrapped input with different fonts.
- Fix crashes when typing operators in long, wrapped expressions.
- Restore digit grouping while typing, following the selected number format.
- Add an option to turn off automatic input adjustments, such as operator replacements and closing brackets.
- Add optional Enter-to-accept autocomplete and Escape-to-clear behavior.
- Add an option to use a steady cursor instead of a blinking one.
- Preserve comments as written and prevent them from affecting result formatting.
- Improve recalling expressions from history and focus the editor after startup.
- Remove the empty-history hint.
Results
- Restore free copying.
- Copy a whole calculation, including all displayed result formats, either across multiple lines or as a single line.
- Add optional removal of trailing decimal zeroes.
- Simplify live previews to show just the results.
- Keep live result previews above the editor when recalling long expressions from history.
- Avoid unnecessary extra simplification lines.
- Restore the F2-F5 and F7-F10 notation shortcuts.
Sessions and settings
- Add private tabs that discard their contents when closed and are not restored on the next launch. Use Ctrl+Shift+N (Cmd+Shift+N on macOS) to open one.
- Allow switching between private and saved sessions, and optionally open a private tab at startup.
- Add Reset All Settings..., keeping sessions, history, and user definitions.
- Fix global user definitions missing from restored sessions.
- Make session renaming, cloning, closed-tab recovery, and pane controls easier to find in the menus. Cloning also copies unfinished input. …

Full release notes »

Technical details

PublisherSpeedCrunch
AuthorHelder Correia
Version1.1
Release date2026-10-20
LicenseGPL-2.0
Installer typenullsoft
Architecturex64
Package IDSpeedCrunch.SpeedCrunch

Links & install command

Install SpeedCrunch from the command line with Windows Package Manager (winget):

winget install --id=SpeedCrunch.SpeedCrunch -e

calculatorscientific calculatorspeedcrunch

Older versions

  • 1.0
  • 0.12