Convert Megabytes to Gigabytes
Convert Megabytes to Gigabytes instantly. 1 Megabyte (MB) equals 0.001 Gigabytes (GB).
Megabytes to Gigabytes conversion table
| Megabytes (MB) | Gigabytes (GB) |
|---|---|
| 1 MB | 0.001 GB |
| 2 MB | 0.002 GB |
| 3 MB | 0.003 GB |
| 5 MB | 0.005 GB |
| 10 MB | 0.01 GB |
| 20 MB | 0.02 GB |
| 50 MB | 0.05 GB |
| 100 MB | 0.1 GB |
| 500 MB | 0.5 GB |
| 1,000 MB | 1 GB |
1 Megabyte = 0.001 Gigabytes · multiply Megabytes by 0.001
About converting Megabytes to Gigabytes
Megabytes (MB) and Gigabytes (GB) are both units of digital storage, so converting between them is a single multiplication: multiply your Megabytes figure by 0.001. Ten Megabytes comes to 0.01 Gigabytes, and a hundred works out at 0.1 Gigabytes.
Rule of thumb: going from Megabytes to Gigabytes divides, so the figure always shrinks — it takes about 1,000 Megabytes to make a single Gigabyte. If your answer came out bigger, you have the conversion the wrong way round.
What is a Megabyte?
A megabyte is a million bytes under the SI prefixes this site uses, though Windows will call 1,048,576 bytes a megabyte; the IEC name for that binary version is the mebibyte (MiB). The best illustration of how confused this all got is the 1.44 MB floppy disk, whose "MB" was neither one nor the other — it meant 1,024,000 bytes, a decimal thousand of binary kilobytes, and essentially nothing else has ever used that unit. Today the megabyte is the natural size of a photo, a song or a document.
What is a Gigabyte?
A gigabyte is a billion bytes in SI terms, and it is the unit consumers actually shop in: phone storage, mobile data allowances, game downloads. It is also where the decimal-versus-binary split gets genuinely interesting, because the answer depends on the product. Drives and data plans are sold in decimal gigabytes; memory is not, and an "8 GB" RAM module really is 8 GiB, because memory is physically addressed in powers of two and could not be built in round decimal sizes. Windows then reports both using binary units labelled "GB".
To put both in perspective: a minute of MP3 audio is roughly a megabyte, while an hour of HD streaming video runs to a few gigabytes.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Gigabytes to Megabytes converter, or browse all Digital Storage converters.
Frequently asked questions
How many Gigabytes are in one Megabyte?
There are 0.001 Gigabytes in one Megabyte.
How do I convert Megabytes to Gigabytes?
Multiply the number of Megabytes by 0.001. For example, 10 Megabytes = 0.01 Gigabytes.
What is 100 Megabytes in Gigabytes?
100 Megabytes is equal to 0.1 Gigabytes.
How do I convert Gigabytes to Megabytes?
Multiply the Gigabytes value by 1,000 (or divide by 0.001).
Is this Megabytes to Gigabytes conversion exact?
Yes, exactly. Both units are fixed against the same base by definition, and 1 Megabyte = 0.001 Gigabytes is the complete value — nothing is rounded away.
What is a Megabyte?
A megabyte is a million bytes under the SI prefixes this site uses, though Windows will call 1,048,576 bytes a megabyte; the IEC name for that binary version is the mebibyte (MiB). The best illustration of how confused this all got is the 1.44 MB floppy disk, whose "MB" was neither one nor the other — it meant 1,024,000 bytes, a decimal thousand of binary kilobytes, and essentially nothing else has ever used that unit. Today the megabyte is the natural size of a photo, a song or a document.
What is a Gigabyte?
A gigabyte is a billion bytes in SI terms, and it is the unit consumers actually shop in: phone storage, mobile data allowances, game downloads. It is also where the decimal-versus-binary split gets genuinely interesting, because the answer depends on the product. Drives and data plans are sold in decimal gigabytes; memory is not, and an "8 GB" RAM module really is 8 GiB, because memory is physically addressed in powers of two and could not be built in round decimal sizes. Windows then reports both using binary units labelled "GB".