Gigabytes to Megabytes Converter

Convert gigabytes (GB) to megabytes (MB) instantly. Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes.

Result

Megabytes
1,000 MB

How to use the gigabytes to megabytes converter

  1. Enter the gigabytes (GB).
  2. The results update as you type, or press Calculate.
  3. Read the megabytes first, then the supporting figures below it.

Formula

Megabytes = gigabytes × 1,000

Worked example

For example, with these inputs:

the calculator returns:

Gigabytes to Megabytes table

GigabytesMegabytes
1 GB1,000 MB
2 GB2,000 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
250 GB250,000 MB
500 GB500,000 MB
1,000 GB1,000,000 MB

About this conversion

Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes.

For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.

Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.

Frequently asked questions

How many megabytes are in one gigabyte?

1 GB = 1,000 MB.

How do I convert GB to MB?

Megabytes = gigabytes × 1,000.

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