Data Storage Converter
Convert bytes, KB, MB, GB, TB and binary units like MiB and GiB.
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How to use the Data Storage Converter
The data storage converter changes file and disk sizes between bits and bytes and every decimal unit (kilobytes, megabytes, gigabytes, terabytes, petabytes), plus the binary units that operating systems often use (kibibytes, mebibytes, gibibytes, tebibytes). It explains why a 1 TB drive shows about 931 GB on your computer.
- 1 Enter the size and choose its unit.
- 2 Choose the unit to convert to.
- 3 Compare decimal (GB) and binary (GiB) values in the full list.
Example and practical tips
1 GB = 1,000 MB, but 1 GiB = 1,024 MiB. A 1 TB drive holds 1,000,000,000,000 bytes, which is about 931 GiB.
Frequently asked questions
What is the difference between GB and GiB?
A gigabyte (GB) is 1,000³ bytes; a gibibyte (GiB) is 1,024³ bytes, about 7% more. Drive makers use GB, while Windows shows GiB but labels it "GB".
How many bits are in a byte?
Eight. Internet speeds are usually measured in bits per second, so a 100 Mbps connection downloads about 12.5 MB per second.
How big is a terabyte?
One terabyte is 1,000 gigabytes, roughly 250,000 photos or 500 hours of HD video.