Data Storage Converter
Convert between bytes, KB, MB, GB, TB and KiB, MiB, GiB, TiB. Free, fast and easy to use.
How it works
Decimal units (KB, MB, GB, TB) use powers of 1,000, while binary units (KiB, MiB, GiB, TiB) use powers of 1,024. That is why a 1 TB drive shows up as about 931 GiB in many operating systems.
Formula
1 KB = 1000 B 1 KiB = 1024 B
Worked examples
- Value: 500 · Unit: GB → B: 500,000,000,000
- Value: 4 · Unit: GiB → B: 4,294,967,296
Calculations run locally in your browser. Results are for information only — for engineering, electrical or financial decisions, verify the assumptions and applicable standards.
Frequently asked questions
Why does my 1 TB drive show only 931 GB?
Manufacturers use 1 TB = 10¹² bytes, while many operating systems count in binary units: 10¹² bytes = 931.3 GiB.
How many MB are in a GB?
1,000 MB in decimal units; in binary units a GiB has 1,024 MiB.