1 gigabyte (GB) = 1,000 megabytes (MB). To convert, multiply by 1,000: MB = GB × 1,000. For example, 5 GB = 5,000 MB.
MB = GB × 1,000
Gigabytes to megabytes table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
The two units
Gigabyte (GB). One billion bytes, the unit drive makers use on the box.
Megabyte (MB). One million bytes. Windows shows sizes in units of 1,048,576 bytes but labels them MB.
Because both units are defined in terms of the same base unit, the factor 1,000 is exact, not a rounded measurement.
Convert gigabytes to other units
- Gigabytes to bits — 1 GB = 8,000,000,000 bit
- Gigabytes to bytes — 1 GB = 1,000,000,000 B
- Gigabytes to kilobytes — 1 GB = 1,000,000 kB
- Gigabytes to terabytes — 1 GB = 0.001 TB
- Gigabytes to petabytes — 1 GB = 0.000001 PB
- Gigabytes to kibibytes — 1 GB = 976,562.5 KiB
- Gigabytes to mebibytes — 1 GB = 953.6743164 MiB
- Gigabytes to gibibytes — 1 GB = 0.9313225746 GiB
- Gigabytes to tebibytes — 1 GB = 0.0009094947 TiB
Convert other units to megabytes
Questions people ask
- How many megabytes are in a gigabyte?
- 1,000, exactly.
- How do you convert gigabytes to megabytes?
- MB = GB × 1,000. It is the same as dividing by 0.001.
- How do you convert megabytes back to gigabytes?
- GB = MB ÷ 1,000. See megabytes to gigabytes.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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