Compare software

bcal vs GNU Units: catalog facts
bcal	GNU Units
Free Free and open source under the GPL-3.0-or-later license.	Free Free software under the GPL, part of the GNU Project.
Command line	Windows, Command line
Converts between SI and IEC storage units Handles byte addresses and LBA or CHS calculations	Handles nonlinear conversions such as temperature and wire gauge Converts to and from sums of units like feet plus inches
Supports 64-bit operating systems only	Command-line only, with no graphical interface Takes some learning to write complex expressions
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.