About Qalculate!
A powerful, easy-to-use desktop calculator with units.
Qalculate! is a productivity app for Windows that focuses on doing its job well, without getting in your way. It ships with natural expression input and unit conversions, and everything is a click away from the moment you open it.
Grab the newest Qalculate! build for Windows here in one click, with no ads and no registration.
Key features
- ✓Natural expression input
- ✓Unit conversions
- ✓Plotting
- ✓Currency rates
Requirements
Windows 10 / 11, 64-bit
Qalculate! — frequently asked questions
Is Qalculate! free to download?+
Yes. Qalculate! is free and open source, so you can use it at no cost.
Is Qalculate! safe to download?+
Yes. HivApps links to the latest Qalculate! build and keeps listings clean, with no bundled extras. As always, keep your antivirus on and only install software you trust.
What is the latest version of Qalculate!?+
The latest version listed here is Qalculate! 5.2, updated Aug 17, 2026.
What do I need to run Qalculate!?+
Windows 10 / 11, 64-bit
How do I install Qalculate! on Windows?+
Click the Download button on this page, run the installer once it finishes downloading, and follow the on-screen setup steps.
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Latest version (5.2) · Safe & clean