Convert between different units of digital storage: bytes, kilobytes, megabytes, gigabytes, terabytes and more.
Decimal units are based on powers of 10 and are commonly used by storage manufacturers and in many contexts:
Binary units are based on powers of 2 and are more commonly used in computing contexts:
The difference between decimal and binary units can lead to confusion. For example, a 1 TB hard drive actually contains about 0.91 TiB of space. This is why your operating system might show less available space than what's advertised on the packaging.
KB (Kilobyte) is 1,000 bytes, while KiB (Kibibyte) is 1,024 bytes. The same pattern applies to MB vs MiB, GB vs GiB, etc. The binary units (KiB, MiB, GiB) are more commonly used in computing contexts, while decimal units (KB, MB, GB) are often used by storage manufacturers.
This is due to the difference between decimal and binary units. Hard drive manufacturers use decimal units (1 TB = 1,000 GB), while operating systems typically use binary units (1 TB = 1,024 GiB). Additionally, some space is used for file system overhead and sometimes recovery partitions.
This converter uses precise mathematical formulas for data size conversions and provides results with high precision. For most practical purposes, the results are as accurate as you'll need them to be.
