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Gigabytes to Megabytes

Convert gigabytes to megabytes instantly, with a table for the values people look up most.

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Gigabytes to Megabytes Conversion Table

1 GB = 1024 MB · 1 MB = 0.00097656 GB

The conversion uses a factor of 1024. Values are rounded to 4 decimals so they match the converter above.

MB = GB × 1024  ·  GB = MB ÷ 1024

Gigabytes to megabytes
Gigabytes (GB)Megabytes (MB)
0.5512
11024
1.51536
22048
44096
88192
1616384
3232768
6465536
128131072
256262144
512524288
Megabytes to gigabytes
Megabytes (MB)Gigabytes (GB)
5120.5
10241
20482
40964
81928
1638416
3276832
6553664
131072128

This page uses the binary definition, 1 GB = 1024 MB. Storage makers often quote 1 GB = 1000 MB, which is why a 128 GB drive shows a smaller figure in some systems.

How to Use

  1. 1

    Enter a value in gigabytes.

  2. 2

    The megabytes equivalent appears instantly.

  3. 3

    Check the table below for common values.

Examples

1 gigabytes

Input

1

Output

1024 MB

0.5 gigabytes

Input

0.5

Output

512 MB

FAQ

How many megabytes is one gigabyte?

1 GB = 1024 MB.

How precise is the conversion?

Results are rounded to 4 decimals and the table uses the same rounding, so both always agree.

Is 1 GB 1000 or 1024 MB?

Both are in use. This converter uses 1024 (binary, JEDEC). Drive makers usually quote 1000, the decimal SI definition.

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