QCalc packs five specialized calculators (Standard, Unit, Currency, Radix, Formula) and 10 languages into one keyboard-friendly, screen-reader-accessible app.
Publisher’s description
What is QCalc?
QCalc is an open-source science & math program for Windows from Kihyun Seo. It is written in TypeScript.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). It can be installed for the current user only, without administrator rights. The installer supports unattended (silent) installation.
Popularity and file types
The source code on GitHub (from104/qcalc) has 3 stars. Similar programs include Stellarium, KiCad and Quarto.
Project description on GitHub: “Keyboard-friendly, screen-reader-accessible multi-purpose calculator: standard, unit, currency, radix and formula modes in 10 languages. Tauri desktop (Linux/Windows) + Android.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
Cons
- No native ARM64 build
In short: QCalc is an open-source science & math tool for 64-bit PCs. Administrators can deploy it unattended.
Is QCalc safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
26CA93F3B2DF6463EF4D801099406B757E0E8841D762867D9A156A762520A981· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.13.2Latest | September 8, 2026 | — | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id from104.QCalc -eQCalc_0.13.2_x64-setup.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Kihyun Seo
- Category
- Science & maths
- Licence
- MIT
- Price
- Free
- Source code
- github.com/from104/qcalc
- Written in
- TypeScript
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 0.13.2
- Released
- September 8, 2026
- Added to the catalogue
- October 8, 2026
- Versions listed
- 1
- GitHub stars
- 3
- Website
- github.com
- winget ID
- from104.QCalc
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is QCalc free?
Yes. QCalc is open-source software under the MIT licence.
Is QCalc safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install QCalc with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can QCalc be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does QCalc run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use QCalc without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to QCalc?
Stellarium, KiCad, Quarto, Qalculate! and JASP. The alternatives page compares them.
