Gigabytes to Megabytes converter

1 gigabyte (GB) equals 1,000 megabytes (MB). 1 MB = 0.001 GB.

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How to convert gigabytes to megabytes

MB = GB × 1,000

Example: 5 GB × 1,000 = 5,000 MB

Gigabytes to Megabytes table

Gigabytes (GB)Megabytes (MB)
0.5 GB500 MB
1 GB1,000 MB
2 GB2,000 MB
3 GB3,000 MB
4 GB4,000 MB
5 GB5,000 MB
6 GB6,000 MB
7 GB7,000 MB
8 GB8,000 MB
9 GB9,000 MB
10 GB10,000 MB
15 GB15,000 MB
20 GB20,000 MB
25 GB25,000 MB
30 GB30,000 MB
40 GB40,000 MB
50 GB50,000 MB
75 GB75,000 MB
100 GB100,000 MB
250 GB250,000 MB
500 GB500,000 MB
1,000 GB1,000,000 MB

About these units

Gigabytes (GB): A gigabyte (GB) is 1,000,000,000 bytes in the decimal (SI) system used by drive makers and network providers.

Megabytes (MB): A megabyte (MB) is 1,000,000 bytes in the decimal system.

Frequently asked questions

How many megabytes are in 1 gigabyte?

1 gigabyte (GB) equals 1,000 megabytes (MB).

How do I convert GB to MB?

Multiply the value in gigabytes by 1,000. For example, 5 GB × 1,000 = 5,000 MB.

How do I convert megabytes back to gigabytes?

Multiply by 0.001 (or divide by 1,000). 1 MB = 0.001 GB.

What is a gigabyte?

A gigabyte (GB) is 1,000,000,000 bytes in the decimal (SI) system used by drive makers and network providers.

Conversion factors come from exact international definitions (NIST SP 811, BIPM) where they exist. Results show up to 10 significant digits. Need every data storage unit at once? Use the Data Storage Converter.