MB to GB Converter
Convert megabytes to gigabytes instantly. Clear SI (decimal) MB to GB converter for storage and bandwidth.
Common conversions
Result
— GB
Conversion formula: multiply by 0.001 (MB → GB)
Related conversions
Need another unit? Open the full Unit Converter for every category.
About Megabyte (SI) to Gigabyte (SI)
Quick answer: 1000 MB = 1 GB. Conversion formula: multiply by 0.001 (MB → GB).
Why convert megabyte (si) to gigabyte (si)?
Storage vendors and ISPs usually use decimal SI units (1 GB = 1000 MB). Converting MB to GB correctly avoids confusion with binary GiB values shown by some operating systems.
How to use this converter:
1. Confirm the From unit is Megabyte (SI) (MB) and To is Gigabyte (SI) (GB).
2. Enter any number — the result updates instantly.
3. Edit either field for bidirectional conversion, adjust precision, or tap Swap.
4. Copy the result when you need it in a report, label, or spreadsheet.
Common use cases:
- Cloud storage and backup planning
- Mobile data plan estimates
- Media file size budgeting
Example conversions
| Megabyte (SI) | Gigabyte (SI) |
|---|---|
| 500 MB | 0.5 GB |
| 1000 MB | 1 GB |
| 2000 MB | 2 GB |
| 5000 MB | 5 GB |
| 10000 MB | 10 GB |
| 100000 MB | 100 GB |
Frequently Asked Questions
How do you convert Megabyte (SI) to Gigabyte (SI)?
Multiply the megabyte (si) value by the conversion factor. Formula: multiply by 0.001 (MB → GB). Example: 1000 MB = 1 GB.
How many gigabyte (si) are in 1 megabyte (si)?
1 MB = 0.001 GB.
Is this converter accurate enough for professional use?
Yes. Linear conversions use internationally defined exact factors (SI and customary). Temperature uses exact scale relationships. Always confirm critical safety, medical, or legal measurements against your governing standard or instrument calibration.
Does conversion happen in my browser?
Yes. Values are converted locally in your browser. No account is required and your numbers are not uploaded to a server.
Can I convert Gigabyte (SI) back to Megabyte (SI)?
Yes — use the Swap control in the converter to reverse the direction instantly.