Convert Megabytes to Gigabytes
MB to GB · digital storage conversion
What are megabytes and gigabytes?
A megabyte is one million bytes, roughly a minute of MP3 audio. A gigabyte is one billion bytes, about a quarter-hour of HD video. For scale: a photo is a few MB, an HD movie a few GB, and a modern drive holds 1 TB or more. These use decimal (1 KB = 1,000 bytes).
How to convert megabytes to gigabytes
1 MB = 0.001 GB. To convert, multiply the number of megabytes by 0.001. For example, 5 MB = 0.005 GB, and 20 MB = 0.02 GB. To go the other way, multiply gigabytes by 1,000 (since 1 GB = 1,000 MB).
Megabytes to Gigabytes conversion table
| Megabytes (MB) | Gigabytes (GB) |
|---|---|
| 1 | 0.001 |
| 8 | 0.008 |
| 16 | 0.016 |
| 64 | 0.064 |
| 128 | 0.128 |
| 500 | 0.5 |
| 1,000 | 1 |
FAQ
What is 1 MB in GB?
1 MB = 0.001 GB. To convert any amount, multiply the number of megabytes by 0.001.
How do I convert gigabytes back to megabytes?
Go the other way: 1 GB = 1,000 MB, so multiply gigabytes by 1,000 to get megabytes.
Is a megabyte bigger than a gigabyte?
No — 1 MB is the smaller unit, equal to 0.001 GB (it takes 1,000 MB to make one GB).
Are these digital storage conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.