Gigabytes to Megabytes
Convert gigabytes to megabytes instantly. The formula is MB = GB × 1000, and the reference table below covers the values people look up most.
1 GB equals
1,000.00 MB
Formula
Using decimal SI prefixes, where 1 GB is 1,000 MB. Operating systems often report binary gibibytes instead.
Gigabytes to Megabytes table
| Gigabytes | Megabytes |
|---|---|
| 0.50 GB | 500.00 MB |
| 1 GB | 1,000.00 MB |
| 2 GB | 2,000.00 MB |
| 4 GB | 4,000.00 MB |
| 8 GB | 8,000.00 MB |
| 16 GB | 16,000.00 MB |
| 32 GB | 32,000.00 MB |
| 64 GB | 64,000.00 MB |
| 128 GB | 128,000.00 MB |
| 256 GB | 256,000.00 MB |
Frequently asked questions
How many megabytes are in a gigabyte?
One gigabyte equals 1,000.00 megabytes. Using decimal SI prefixes, where 1 GB is 1,000 MB. Operating systems often report binary gibibytes instead.
What is the formula to convert gigabytes to megabytes?
MB = GB × 1000. Enter any value above and the result updates as you type, with no rounding until the final display.
How do I convert megabytes back to gigabytes?
Use the reverse conversion: divide instead of multiplying, or open the megabytes to gigabytes page for the same tool the other way round.
Is this gigabytes to megabytes conversion exact?
The underlying factor is the internationally defined one, so the only rounding happens when the result is displayed. The table below shows values rounded to 2 decimal places.