GB to MB – convert gigabytes to megabytes
Convert GB to MB (gigabytes to megabytes) to understand file sizes, storage limits, and download estimates. This page opens the main data converter with GB → MB pre-selected so you can type any number of gigabytes and see the equivalent in megabytes.
Open the interactive GB → MB converter:
Use main converter (GB → MB) or switch to MB → GBThe homepage treats KB, MB, GB and TB using standard binary prefixes (multiples of 1024), which is how operating systems usually report disk and file sizes.
Quick reference: GB to MB
In binary data units, 1 GB = 1024 MB. That means: MB = GB × 1024. Some common values:
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 0.5 GB | 512 MB |
| 1 GB | 1024 MB |
| 2 GB | 2048 MB |
| 5 GB | 5120 MB |
| 10 GB | 10240 MB |
| 50 GB | 51200 MB |
| 100 GB | 102400 MB |
GB to MB conversion formula
The straightforward binary formula for converting gigabytes to megabytes is:
MB = GB × 1024
Examples:
- 3 GB × 1024 = 3072 MB
- 8 GB × 1024 = 8192 MB
- 25 GB × 1024 = 25600 MB
Why convert GB to MB?
You’ll often convert GB to MB when you:
- Compare app or game download sizes in MB vs storage space shown in GB.
- Check if a USB drive or SD card has enough space for a batch of files.
- Read hosting or cloud storage plans listed in GB but see tools reporting MB.
- Troubleshoot data usage on a phone plan where usage is shown in MB.
More data converters on this site
On the homepage you can also move directly between bits, bytes, kilobytes, megabytes, gigabytes and terabytes in either direction, then share a link to any exact conversion.