The short answer
- 1 GB = 1,000 MB
- 1 MB = 0.001 GB
Worked example2 GB × 1,000 = 2,000 MB
UNIT CONVERSION
← Data storage converterGigabytes to megabytes
To convert gigabytes to megabytes, multiply the number of gigabytes by 1,000.
What the units mean
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.
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.
Gigabytes to megabytes table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 1 | 1,000 |
| 1.5 | 1,500 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 8 | 8,000 |
| 10 | 10,000 |
| 16 | 16,000 |
| 20 | 20,000 |
| 32 | 32,000 |
| 50 | 50,000 |
| 64 | 64,000 |
| 100 | 100,000 |
| 128 | 128,000 |
| 256 | 256,000 |
| 512 | 512,000 |
| 1,000 | 1,000,000 |
Values are rounded to 7 significant figures.
Common questions
How do I convert gigabytes to megabytes?
Multiply the number of gigabytes by 1,000. For example, 2 GB × 1,000 = 2,000 MB.
How many megabytes are in one gigabyte?
One gigabyte is exactly 1,000 megabytes.
Is this conversion exact?
Yes. Both units have exact legal definitions, so the factor is exact. Values on this page are rounded to 7 significant figures.