This megabytes to gigabytes converter gives you the MB to GB result instantly, in your browser, with the exact ratio so you can verify it. 1 megabyte is exactly 0.001 gigabytes, and going the other way, 1 gigabyte is 1,000 megabytes. Megabytes are a decimal storage unit as used by drive manufacturers and most operating systems; gigabytes are a decimal storage unit as used by drive manufacturers and most operating systems.
To convert by hand, multiply the number of megabytes by 0.001. For example, 10 megabytes is 0.01 gigabytes and 100 megabytes is 0.1 gigabytes. The table below lists the most requested values, and the converter above accepts decimals for anything in between.
MB to GB formula
GB = MB × 0.001
1 megabyte is exactly 0.001 gigabytes. Multiply the value in megabytes by that factor to get gigabytes.
Megabytes to Gigabytes conversion table
| megabytes | gigabytes | Rounded |
|---|---|---|
| 1 MB | 0.001 GB | 0.001 |
| 2 MB | 0.002 GB | 0.002 |
| 4 MB | 0.004 GB | 0.004 |
| 8 MB | 0.008 GB | 0.008 |
| 16 MB | 0.016 GB | 0.016 |
| 32 MB | 0.032 GB | 0.032 |
| 50 MB | 0.05 GB | 0.05 |
| 64 MB | 0.064 GB | 0.064 |
| 100 MB | 0.1 GB | 0.1 |
| 128 MB | 0.128 GB | 0.128 |
| 200 MB | 0.2 GB | 0.2 |
| 256 MB | 0.256 GB | 0.256 |
| 500 MB | 0.5 GB | 0.5 |
| 512 MB | 0.512 GB | 0.512 |
| 1,000 MB | 1 GB | 1 |
| 1,024 MB | 1.024 GB | 1.02 |
| 2,000 MB | 2 GB | 2 |
| 2,048 MB | 2.048 GB | 2.05 |
| 5,000 MB | 5 GB | 5 |
| 10,000 MB | 10 GB | 10 |
Frequently asked questions
How many gigabytes are in 5 megabytes?
5 MB = 0.005 GB. Multiply 5 by 0.001, the number of gigabytes in one megabyte. The converter on this page does the same arithmetic for any value, including decimals.
What is the formula to convert megabytes to gigabytes?
GB = MB × 0.001. The factor comes from the definitions of the units: 1 megabyte is exactly 0.001 gigabytes. Worked example: 12 MB = 0.012 GB.
Is 30 MB the same as 0.03 GB?
Yes. 30 MB = 0.03 GB. Rounded to the nearest whole unit it is 0.03 GB.
How do I convert gigabytes back to megabytes?
Divide by 0.001, or multiply by 1,000: 1 gigabyte is 1,000 megabytes. The gigabytes to megabytes page linked above lists common values the other way.
Is the MB to GB conversion exact?
1 megabyte is exactly 0.001 gigabytes. The ratio is fixed by international agreement, so results are exact apart from rounding in the display.