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 MB |
| 1 GB | 1000 MB |
| 2 GB | 2000 MB |
| 3 GB | 3000 MB |
| 5 GB | 5000 MB |
| 10 GB | 10000 MB |
| 20 GB | 20000 MB |
| 30 GB | 30000 MB |
| 50 GB | 50000 MB |
| 100 GB | 100000 MB |
| 1000 GB | 1000000 MB |