GB to MB Converter
Convert gigabytes (GB) to megabytes (MB). 1 GB = 1,000 MB.
How to convert GB to MB
Gigabytes and megabytes are both decimal (power-of-1000) units defined by the SI standard. One GB is 1,000,000,000 bytes and one MB is 1,000,000 bytes, so multiply a GB value by 1,000 to get MB.
GB to MB conversion table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 8 | 8,000 |
| 10 | 10,000 |
| 16 | 16,000 |
| 25 | 25,000 |
| 32 | 32,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 128 | 128,000 |
| 250 | 250,000 |
| 256 | 256,000 |
| 500 | 500,000 |
| 512 | 512,000 |
| 1,000 | 1,000,000 |
| 1,024 | 1,024,000 |
KB vs KiB: 1000 or 1024?
SI units (KB, MB, GB, TB) are powers of 1000. Binary units (KiB, MiB, GiB, TiB) are powers of 1024. Storage manufacturers advertise in decimal units while operating systems often report binary units, which is why drives appear "smaller" than advertised. When precision matters, name the unit explicitly.