Gigabytes (GB) to Megabytes (MB) Conversion
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
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 (GB) | Megabytes (MB) |
|---|---|
| 0.1 GB | 100.00 MB |
| 1 GB | 1,000.00 MB |
| 2 GB | 2,000.00 MB |
| 3 GB | 3,000.00 MB |
| 5 GB | 5,000.00 MB |
| 10 GB | 10,000.00 MB |
| 20 GB | 20,000.00 MB |
| 30 GB | 30,000.00 MB |
| 50 GB | 50,000.00 MB |
| 100 GB | 100,000.00 MB |
| 1000 GB | 1,000,000.00 MB |
Frequently Asked Questions (FAQ)
How many megabytes are in 1 gigabytes?
1 gigabytes (GB) is exactly 1,000.00 megabytes (MB).
How do I convert gigabytes to megabytes?
Multiply the value in gigabytes by 1,000.00 to get the result in megabytes. Or use the converter above — type any number and see the result instantly.