Convert Gigabyte to Megabyte
Convert Gigabyte to Megabyte instantly. 1 GB = 1,024 MB. Formula, worked examples and a quick reference table.
Last updated
One gigabyte equals 1,024 megabytes. To convert any number of gigabytes to megabytes, multiply by 1,024.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Gigabyte to Megabyte formula
To go the other way, use gigabyte = megabyte ÷ 1,024.
About these units
Operating systems treat a gigabyte as 2³⁰ bytes while drive manufacturers use 10⁹. This is why a 1 TB drive reports as roughly 931 GB.
Gigabyte to Megabyte conversion table
| Gigabyte | Megabyte |
|---|---|
| 1 GB | 1,024 MB |
| 2 GB | 2,048 MB |
| 4 GB | 4,096 MB |
| 8 GB | 8,192 MB |
| 16 GB | 16,384 MB |
| 32 GB | 32,768 MB |
| 64 GB | 65,536 MB |
| 128 GB | 131,072 MB |
| 256 GB | 262,144 MB |
| 512 GB | 524,288 MB |
| 1,024 GB | 1,048,576 MB |
Frequently asked questions
How many megabytes are in a gigabyte? +
There are 1,024 megabytes in one gigabyte.
What is 10 GB in MB? +
10 GB equals 10,240 MB. Multiply 10 by 1,024.
How do I convert megabyte back to gigabyte? +
Use gigabyte = megabyte ÷ 1,024. The converter above handles both directions, or see our dedicated Megabyte to Gigabyte page.