1 megabyte (MB) = 0.001 gigabytes (GB). To convert, divide by 1,000: GB = MB ÷ 1,000. For example, 500 MB = 0.5 GB.
GB = MB ÷ 1,000
Megabytes to gigabytes table
| Megabytes (MB) | Gigabytes (GB) |
|---|---|
| 100 | 0.1 |
| 200 | 0.2 |
| 300 | 0.3 |
| 400 | 0.4 |
| 500 | 0.5 |
| 1,000 | 1 |
| 2,000 | 2 |
| 2,500 | 2.5 |
| 5,000 | 5 |
| 10,000 | 10 |
| 25,000 | 25 |
| 50,000 | 50 |
| 100,000 | 100 |
The two units
Megabyte (MB). One million bytes. Windows shows sizes in units of 1,048,576 bytes but labels them MB.
Gigabyte (GB). One billion bytes, the unit drive makers use on the box.
Because both units are defined in terms of the same base unit, the factor 0.001 is exact, not a rounded measurement.
Convert megabytes to other units
- Megabytes to bits — 1 MB = 8,000,000 bit
- Megabytes to bytes — 1 MB = 1,000,000 B
- Megabytes to kilobytes — 1 MB = 1,000 kB
- Megabytes to terabytes — 1 MB = 0.000001 TB
- Megabytes to petabytes — 1 MB = 1e-9 PB
- Megabytes to kibibytes — 1 MB = 976.5625 KiB
- Megabytes to mebibytes — 1 MB = 0.9536743164 MiB
- Megabytes to gibibytes — 1 MB = 0.0009313226 GiB
- Megabytes to tebibytes — 1 MB = 9.094947e-7 TiB
Convert other units to gigabytes
Questions people ask
- How many gigabytes are in a megabyte?
- 0.001, exactly.
- How do you convert megabytes to gigabytes?
- GB = MB ÷ 1,000. It is the same as dividing by 1,000.
- How do you convert gigabytes back to megabytes?
- MB = GB × 1,000. See gigabytes to megabytes.
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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