Gigabytes to Megabytes converter (GB to MB)
Convert Gigabytes (GB) to Megabytes (MB) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
How to convert Gigabytes to Megabytes
1 gigabyte (GB) is equal to 1,024 megabytes (MB).
MB = GB × 1,024
Multiply the gigabytes by 1,024:
Example: Convert 2 GB to MB:
MB = 2 × 1,024 = 2,048 MB
What is a Gigabytes?
The Gigabytes (GB) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Megabytes?
The Megabytes (MB) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts digital storage from Gigabytes into Megabytes. One GB equals 1024 MB.
Gigabytes to Megabytes conversion table
Common GB values and the matching MB result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 1 GB | 1024 MB |
| 2 GB | 2048 MB |
| 4 GB | 4096 MB |
| 8 GB | 8192 MB |
| 16 GB | 16384 MB |
| 32 GB | 32768 MB |
| 64 GB | 65536 MB |
| 128 GB | 131072 MB |
| 256 GB | 262144 MB |
| 512 GB | 524288 MB |
How this calculator works
The form on this page is a Gigabytes-to-Megabytes converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the MB result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many MB are in 1 GB?
1 GB = 1024 MB.
How do I convert Gigabytes to Megabytes?
Multiply the gigabytes by 1,024:
Is this GB to MB converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.