Megabytes to Gigabytes
A megabyte is 1,000 kilobytes, a common unit for document, photo, and small app file sizes. A gigabyte is 1,000 megabytes, the standard unit for phone storage, video files, and monthly data plans. 1 MB equals 0.001 GB, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to data, measured here against data's base unit (bit) — every other data unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
GB = MB × 0.001
MB = GB × 1,000
Worked example: 5 MB × 0.001 = 0.005 GB.
Conversion table
| Megabyte (MB) | Gigabyte (GB) |
|---|---|
| 1 MB | 0.001 GB |
| 2 MB | 0.002 GB |
| 3 MB | 0.003 GB |
| 5 MB | 0.005 GB |
| 10 MB | 0.01 GB |
| 20 MB | 0.02 GB |
| 25 MB | 0.025 GB |
| 50 MB | 0.05 GB |
| 100 MB | 0.1 GB |
| 250 MB | 0.25 GB |
| 500 MB | 0.5 GB |
| 1,000 MB | 1 GB |
Frequently asked
- How many Gigabytes in a megabyte?
- 1 MB equals 0.001 GB.
- How do I convert Megabytes to Gigabytes?
- Multiply the value in MB by 0.001 to get GB. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Megabyte and Gigabyte are both defined by a fixed conversion factor to data's base unit (bit), so the result shown is exact to the precision displayed, not an approximation.