Non-negative byte count—binary prefixes KiB, MiB, GiB (1024-based).
The tool treats the byte count as a non‑negative real (up to a large cap) and divides by 1024 repeatedly for binary prefixes (KiB, MiB, GiB). The main line formats bytes with the browser’s locale; it is not switching to SI decimal megabytes unless you interpret the labels that way yourself.
This calculator uses plain decimal numbers. If a result looks wrong, check whether you used a comma instead of a dot (or vice versa) where the field expects one.