How to convert gigabytes to megabytes
- Type the value in gigabytes (GB) in the box above.
- The result in megabytes appears instantly, along with the same value in every other unit of data.
- Press ⇄ to convert the other way.
Formula
MB = GB × 1000 (decimal); MiB = GiB × 1024 (binary). So 1 GB = 1,000 MB, and 2 GB = 2,000 MB.
Gigabytes to megabytes helps compare mobile data allowances, email attachment limits (often 25 MB), and how many photos or songs fit on a device. With decimal units, 1 GB is 1000 MB, which matches how phone carriers and storage makers count. A 5 GB plan therefore gives 5000 MB; a typical phone photo is 2–5 MB and an hour of HD video streaming uses about 1.5–3 GB.
GB to MB conversion chart
| Gigabytes | Megabytes |
|---|---|
| 0.1 GB | 100 MB |
| 0.25 GB | 250 MB |
| 0.5 GB | 500 MB |
| 1 GB | 1,000 MB |
| 2 GB | 2,000 MB |
| 4 GB | 4,000 MB |
| 5 GB | 5,000 MB |
| 8 GB | 8,000 MB |
| 16 GB | 16,000 MB |
| 32 GB | 32,000 MB |
| 64 GB | 64,000 MB |
| 128 GB | 128,000 MB |
FAQ
How many MB is 2 GB?
2000 MB in decimal units, or 2048 MiB in binary units.
How do I convert GB to MB?
Use MB = GB × 1000 (decimal); MiB = GiB × 1024 (binary). Or type the value above and the converter does it for you.
How do I convert MB back to GB?
Multiply by 0.001, or press the ⇄ button in the converter.