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Convert Gigabytes to Megabytes

1 gigabyte = 1,000 megabytes. Multiply the number of gigabytes by 1000.

Result
1,000

1 GB = 1,000 MB

Multiply the number of gigabytes by 1000.

Results are rounded for display. Double-check values for critical work.

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Gigabytes to Megabytes table

GigabytesMegabytes
1 GB1,000 MB
2 GB2,000 MB
3 GB3,000 MB
4 GB4,000 MB
5 GB5,000 MB
10 GB10,000 MB
20 GB20,000 MB
25 GB25,000 MB
50 GB50,000 MB
100 GB100,000 MB
500 GB500,000 MB
1000 GB1,000,000 MB

About these units

The gigabyte (GB) is a metric unit of data storage, equal to 1,000,000,000 bytes.

The megabyte (MB) is a metric unit of data storage, equal to 1,000,000 bytes.

Going the other way, 1 megabyte = 0.001 gigabytes. Storage has two competing definitions: drive makers count a gigabyte as 1,000,000,000 bytes, while operating systems often show gibibytes of 1,073,741,824 bytes. That 7% gap is why a '1 TB' drive shows up as 931 GB. Both families are included below so you can compare them directly.

Frequently asked

How many megabytes are in a gigabyte?
1 gigabyte = 1,000 megabytes.
How do you convert gigabytes to megabytes?
Multiply the number of gigabytes by 1000.
What is 10 GB in MB?
10 GB = 10,000 MB.

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