Megabytes (MB) to Gigabytes (GB) Conversion
Megabytes
The megabyte (MB) is a unit of digital information equal to 1,000,000 bytes (10⁶ bytes) in the SI decimal definition, or 1,048,576 bytes in binary convention. A minute of CD-quality audio requires approximately 10 MB uncompressed; a typical JPEG photograph ranges from 2 to 8 MB; a standard definition video runs roughly 1 GB per hour. The megabyte was the dominant storage unit for personal computers throughout the 1980s and 1990s before the gigabyte became standard.
Gigabytes
The gigabyte (GB) is a unit of digital information equal to 1,000,000,000 bytes (10⁹ bytes) in SI decimal, or 1,073,741,824 bytes in binary convention. It is the dominant unit for consumer storage — smartphone internal storage, USB drives, and SD cards are sold in gigabytes. One hour of standard HD streaming consumes approximately 3 GB; one hour of 4K video requires 7–15 GB depending on encoding. Monthly mobile data plans are universally priced per gigabyte.
| Megabytes (MB) | Gigabytes (GB) |
|---|---|
| 0.1 MB | 0.0001 GB |
| 1 MB | 0.001 GB |
| 2 MB | 0.002 GB |
| 3 MB | 0.003 GB |
| 5 MB | 0.005 GB |
| 10 MB | 0.01 GB |
| 20 MB | 0.02 GB |
| 30 MB | 0.03 GB |
| 50 MB | 0.05 GB |
| 100 MB | 0.10 GB |
| 1000 MB | 1.00 GB |
Frequently Asked Questions (FAQ)
How many gigabytes are in 1 megabytes?
1 megabytes (MB) is exactly 0.001 gigabytes (GB).
How do I convert megabytes to gigabytes?
Multiply the value in megabytes by 0.001 to get the result in gigabytes. Or use the converter above — type any number and see the result instantly.