Converts byte counts to KB/MB/GB (decimal and binary).
Byte Size Converter takes a raw byte count or a human-readable size like "1.5 MB" and converts it into both decimal (KB/MB/GB) and binary (KiB/MiB/GiB) units. It's handy when you need to reconcile file sizes, storage quotas, or memory figures that mix the 1000-based and 1024-based conventions. Paste a number or a value with a unit and you get the exact byte count alongside humanized decimal and binary representations.
No. The conversion runs entirely in your browser using local JavaScript, and nothing you enter is uploaded or stored on any server.
You can enter a plain number (treated as bytes) or a number followed by a unit: B, KB, MB, GB, TB, or the binary units KiB, MiB, GiB, TiB. Input is case-insensitive and an optional space between number and unit is allowed.
Decimal units (KB, MB, GB) use a base of 1000, while binary units (KiB, MiB, GiB) use a base of 1024. The tool shows both so you can see how the same byte count maps onto each convention.
The decimal and binary results are rounded to at most two decimal places, while the raw byte count is always shown in full with no rounding.
Decimal output scales up to PB and binary output up to PiB, picking the largest unit where the value stays at or above the base.