Data Storage Converter
Digital storage is measured in bytes. Decimal units (KB, MB, GB) use powers of 1000 and are common on drive labels, while binary units (KiB, MiB, GiB) use powers of 1024 and are common in operating systems. Mixing the two is the usual reason reported storage sizes disagree.
About data storage conversion
Data Storage conversion is commonly needed when sizing drives, files, backups, and memory. Decimal units (KB, MB, GB) and binary units (KiB, MiB, GiB) differ, which is why a labeled drive shows less space in your operating system.
Popular conversions
All data storage units
| Unit | Symbol | System |
|---|---|---|
| Bit | bit | Other |
| Byte | B | Other |
| Kilobyte | KB | Metric |
| Megabyte | MB | Metric |
| Gigabyte | GB | Metric |
| Terabyte | TB | Metric |
| Petabyte | PB | Metric |
| Kibibyte | KiB | Other |
| Mebibyte | MiB | Other |
| Gibibyte | GiB | Other |
| Tebibyte | TiB | Other |
Frequently asked questions
What is the base unit for data storage?
Data Storage conversions on this site are calculated against the byte (B).
Which data storage units can I convert?
You can convert between 11 units, including bit, byte, kilobyte, megabyte, and more.
Where is data storage conversion useful?
It is commonly needed when sizing drives, files, backups, and memory.
Does this converter mix measurement systems?
The converter supports Other, Metric units and keeps their exact definitions separate so results stay accurate.