Data Storage Converter
Convert between bits, bytes, KB/MB/GB/TB (decimal) and KiB/MiB/GiB/TiB (binary) — nothing is uploaded.
Convert data storage units instantly in your browser
Enter a value and choose your source and target units — the result updates as you type. Ten units are supported: bit, byte, and both decimal (KB, MB, GB, TB — powers of 1000) and binary (KiB, MiB, GiB, TiB — powers of 1024) prefixes. Use the filter buttons to show only decimal or only binary units. Nothing is sent to a server; every calculation runs locally in your browser.
The decimal system (SI) uses base-1000 prefixes and is typically used by storage device manufacturers and network equipment. The binary system (IEC) uses base-1024 prefixes and is how operating systems like Windows report file sizes. This difference is why a 1 TB hard drive shows as about 931 GiB in Windows.
FAQ
What is the difference between MB and MiB? 1 MB = 1,000,000 bytes (decimal), while 1 MiB = 1,048,576 bytes (binary). The IEC introduced the MiB, GiB, and TiB prefixes in 1998 to remove the ambiguity.
How many bits are in a byte? Exactly 8 bits equal 1 byte. This is a fixed definition.