1 GB equals 1,000 MB. To convert GB to MB, multiply the value by 1,000; divide by 1,000 to convert back. Enter any number above and the result appears instantly — free and entirely in your browser.
How do you convert GB to MB?
The conversion formula is MB = GB × 1,000. The conversion factor is fixed by definition, so the result is always exact.
GB to MB conversion table
| GB | MB |
|---|---|
| 1 GB | 1,000 MB |
| 2 GB | 2,000 MB |
| 5 GB | 5,000 MB |
| 10 GB | 10,000 MB |
| 100 GB | 100,000 MB |
| 1,000 GB | 1,000,000 MB |
What is GB (GB)?
A gigabyte (GB) is 1,000 megabytes (decimal). It is the everyday unit for phone storage, mobile data plans and downloads.
What is MB (MB)?
A megabyte (MB) is 1,000,000 bytes (decimal). A few minutes of MP3 audio or one high-quality photo is a few megabytes.
Why convert GB to MB?
Decimal units (KB, MB, GB) are used by drive makers and networks; binary units (KiB, MiB, GiB) by operating systems and RAM. The roughly 7% gap per step is why drives look 'smaller' than advertised.
Storage makers use decimal units: 1 GB = 1,000 MB = 1,000,000,000 bytes. Operating systems often show binary units, where 1 GiB = 1,024 MiB — which is why a '1 TB' drive appears as about 931 GiB (IEC 80000-13).
How to convert GB to MB
- Enter the value in GB into the left field of the converter.
- Read the result in MB instantly in the right field — it updates automatically.
- Use the swap button to reverse the direction (MB to GB).
The converter runs entirely in your browser: no uploads, no queue, no limits. You can even use it offline.