Convert Gigabyte to Megabyte
1 gigabyte equals 1,000 megabytes. Enter a value below to convert instantly.
Formula
Multiply the number of gigabytes by 1000 to get megabytes.
Step by step
- Start with 1 GB.
- Multiply by the conversion factor 1000.
- 1 × 1000 = 1,000 MB.
Gigabyte to Megabyte conversion table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
About the gigabyte
The gigabyte (GB) is a Metric unit of data storage.
About the megabyte
The megabyte (MB) is a Metric unit of data storage.
Where this conversion is used
Converting gigabytes to megabytes comes up when sizing drives, files, backups, and memory. Decimal units (KB, MB, GB) and binary units (KiB, MiB, GiB) differ, which is why a labeled drive shows less space in your operating system.
Need the other direction? Convert megabyte to gigabyte →
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Frequently asked questions
How many megabytes are in a gigabyte?
One gigabyte equals 1,000 megabytes.
How do you convert gigabytes to megabytes?
Multiply the number of gigabytes by 1000 to get megabytes.
What is 1 megabyte in gigabytes?
One megabyte equals 0.001 gigabytes.
When would I convert gigabytes to megabytes?
This conversion is common when sizing drives, files, backups, and memory.
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.