Byte Size Converter
Translate storage sizes between decimal SI units and binary IEC units.
What is this tool?
The converter expresses one byte quantity in nine common units. Decimal units are typical for drive marketing; binary units often appear in operating systems and memory measurements.
How to use it
- Enter a non-negative size.
- Select its current unit.
- Convert to see all equivalents.
- Copy an individual result.
Example
1 MB equals 1,000,000 B, while 1 MiB equals 1,048,576 B.
FAQ
Why are MB and MiB different?
They use different multiplication factors: 1,000 versus 1,024.
Are negative sizes accepted?
No. Storage size is treated as a non-negative quantity.
Why are long results rounded?
Display uses up to 12 significant digits for readability; copying retains the unformatted numeric result.