Gigabytes to Megabytes Converter
Convert gigabytes (GB) to megabytes (MB), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an amount of data, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 GB = 1000 MB
- 1 × 1000 = 1000 MB
How to convert gigabytes to megabytes
1 GB = 1,000 MB, so multiply by 1,000 to go from gigabytes to megabytes. Going the other way, 1 MB = 0.001 GB.
MB = GB × 1,000 GB = MB × 0.001
Worked example:
1 GB = 1000 MB 5 × 1000 = 5000 MB
Gigabytes to megabytes table
| Gigabytes | Megabytes |
|---|---|
| 1 GB | 1,000 MB |
| 2 GB | 2,000 MB |
| 3 GB | 3,000 MB |
| 4 GB | 4,000 MB |
| 5 GB | 5,000 MB |
| 6 GB | 6,000 MB |
| 7 GB | 7,000 MB |
| 8 GB | 8,000 MB |
| 9 GB | 9,000 MB |
| 10 GB | 10,000 MB |
| 15 GB | 15,000 MB |
| 20 GB | 20,000 MB |
| 25 GB | 25,000 MB |
| 30 GB | 30,000 MB |
| 40 GB | 40,000 MB |
| 50 GB | 50,000 MB |
| 75 GB | 75,000 MB |
| 100 GB | 100,000 MB |
| 250 GB | 250,000 MB |
| 500 GB | 500,000 MB |
| 1000 GB | 1,000,000 MB |
About the units
- Gigabytes (GB)
- Gigabytes, a metric unit. Decimal (SI) gigabyte = 1000^3 bytes. Many operating systems label the binary gibibyte (GiB) as 'GB'. Definition: NIST: Prefixes for binary multiples (IEC 80000-13).
- Megabytes (MB)
- Megabytes, a metric unit. Decimal (SI) megabyte = 1000^2 bytes. Many operating systems label the binary mebibyte (MiB) as 'MB'. Definition: NIST: Prefixes for binary multiples (IEC 80000-13).