Data Storage Converter (KB, MB, GB, TB)
Data storage converter: bytes, KB, MB, GB, TB, PB and binary KiB, MiB, GiB, TiB, plus bits and megabits.
How to use this calculator
- Type the value you want to convert.
- Choose the unit you are converting from and the one you want.
- Read the result, or the full table of equivalent units below.
Storage makers use decimal units (1 GB = 1,000,000,000 bytes), while many operating systems report binary units (1 GiB = 1,073,741,824 bytes). That is why a 1 TB drive shows about 931 GiB.
Network speeds are in bits: divide megabits by 8 to get megabytes, so a 100 Mbit/s connection moves 12.5 MB per second.
Conversion formula
1 GB = 1 000 MB · 1 MB = 0.001 GB
Common conversions: gigabyte → megabyte
| GB | MB |
|---|---|
| 1 GB | 1 000 MB |
| 2 GB | 2 000 MB |
| 5 GB | 5 000 MB |
| 10 GB | 10 000 MB |
| 20 GB | 20 000 MB |
| 50 GB | 50 000 MB |
| 100 GB | 100 000 MB |
| 1 000 GB | 1 000 000 MB |
Frequently asked questions
How many MB are in a GB?
1,000 MB in decimal units; 1,024 MiB in a GiB.
Why does my 1 TB drive show less space?
1 TB = 10¹² bytes = 931.3 GiB; the operating system reports GiB but labels it GB.