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Convert megabytes to gigabytes

Converting megabytes to gigabytes is a common data task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 MB equals 0.001 GB, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.

How to convert megabytes to gigabytes

To convert megabytes to gigabytes, multiply the number of megabytes by 0.001. For example, 10 MB × 0.001 = 0.01 GB.

GB = MB × 0.001

  1. Write down the value in megabytes you want to convert.
  2. Multiply it by 0.001 (the exact MB→GB factor).
  3. The result is your value in gigabytes. Check it below with the converter or the table.

Conversion table

Common values of megabytes and their equivalents in gigabytes:

megabytes to gigabytes — quick reference
Common values converted from megabytes to gigabytes
MBGB
10.001
20.002
30.003
40.004
50.005
100.01
200.02
250.025
500.05
1000.1
2500.25
5000.5

About these units

Megabyte (MB). A megabyte is 1,000 kilobytes, or one million bytes. Photos, songs and PDF documents typically range from one to ten megabytes.

Gigabyte (GB). A gigabyte is 1,000 megabytes, roughly an hour of HD video or 250 songs. Smartphone storage, RAM and data plans are specified in gigabytes.

Frequently asked questions

How do I convert megabytes to gigabytes?

To convert megabytes to gigabytes, multiply the number of megabytes by 0.001. For example, 10 MB × 0.001 = 0.01 GB. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.

How many gigabytes are in 1 megabyte?

1 MB = 0.001 GB. That is the fixed relationship used by this converter and by international standards.

How many megabytes are in 1 gigabyte?

1 GB = 1,000 MB. If you are converting in the opposite direction, use our Gigabyte to Megabyte converter for the dedicated table and FAQ.

Is the megabytes to gigabytes conversion exact?

Yes — this site uses decimal SI prefixes, so 1 KB = 1,000 bytes exactly. Note that some operating systems report file sizes in binary units (1 KiB = 1,024 bytes), which can make numbers differ slightly from storage labels.

What is megabyte used for?

A megabyte is 1,000 kilobytes, or one million bytes. Photos, songs and PDF documents typically range from one to ten megabytes.