Data Storage Converter

Data storage units carry a mistake that's baked into how they're commonly used: a "kilobyte" gets treated as both 1,000 bytes (the decimal definition, which is what storage manufacturers use, and technically the correct meaning of the SI prefix "kilo") and 1,024 bytes (the binary definition your operating system usually shows, because computers work in powers of two). At small scales the difference is trivial; by the time you're talking about terabytes, it's a gap of roughly 10%, which is the entire reason a "1 TB" hard drive shows up as about 931 GB in your file explorer. This converter keeps the two properly separate — decimal KB/MB/GB/TB/PB alongside their distinct binary counterparts KiB/MiB/GiB/TiB/PiB, correctly labeled with which is which — rather than quietly picking one and hoping it's the one you meant, which is what causes the confusion in the first place.

Enter a value in either field and the other updates instantly; swap reverses the two units. Everything routes through bits as the common base, down to individual bits and nibbles at the small end for anyone working with raw binary data.

Dedicated pages for the most common conversions — MB to GB, GB to TB, KB to MB — are linked below with preloaded calculators. This is plain arithmetic running entirely in your browser; there's no external service involved and nothing about your conversions is recorded.