The short answer
- 1 MB = 0.001 GB
- 1 GB = 1,000 MB
Worked example2,500 MB × 0.001 = 2.5 GB
To convert megabytes to gigabytes, multiply the number of megabytes by 0.001.
Megabyte. The megabyte here is the decimal unit of 1,000,000 bytes used by storage makers and networks. The binary mebibyte (MiB) is 1,048,576 bytes.
Gigabyte. The gigabyte is 1,000,000,000 bytes. Operating systems that count in binary units show the same drive as fewer gigabytes, because their 'GB' is really a GiB.
| Megabytes (MB) | Gigabytes (GB) |
|---|---|
| 1 | 0.001 |
| 10 | 0.01 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 700 | 0.7 |
| 750 | 0.75 |
| 1,000 | 1 |
| 1,500 | 1.5 |
| 2,000 | 2 |
| 2,500 | 2.5 |
| 4,000 | 4 |
| 5,000 | 5 |
| 8,000 | 8 |
| 10,000 | 10 |
| 50,000 | 50 |
| 100,000 | 100 |
Values are rounded to 7 significant figures.
Multiply the number of megabytes by 0.001. For example, 2,500 MB × 0.001 = 2.5 GB.
One megabyte is exactly 0.001 gigabytes.
Yes. Both units have exact legal definitions, so the factor is exact. Values on this page are rounded to 7 significant figures.