How to convert megabytes to gigabytes
To convert megabytes to gigabytes, multiply by 0.001. Data size conversions matter for file uploads, cloud storage plans, hard drives and internet usage. Decimal (SI) prefixes are used: 1 KB = 1,000 bytes.
Megabyte to Gigabyte conversion table
| Megabyte (MB) | Gigabyte (GB) |
|---|---|
| 0.1 MB | 0.0001 GB |
| 0.5 MB | 0.0005 GB |
| 1 MB | 0.001 GB |
| 2 MB | 0.002 GB |
| 3 MB | 0.003 GB |
| 4 MB | 0.004 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 |
| 500 MB | 0.5 GB |
| 1,000 MB | 1 GB |
About the units
Megabyte (MB)
A megabyte is 1,000,000 bytes, roughly the size of a short MP3 minute or a photo.
Gigabyte (GB)
A gigabyte is 1,000,000,000 bytes and the common unit for phone storage and data plans.
How to use this converter
- Type the number of megabytes (MB) in the input box.
- The result in gigabytes appears instantly — no button needed.
- See the same value in every other data storage unit just below.
- Use “Swap units” to convert gigabytes back to megabytes.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many gigabytes are in one megabyte?
One megabyte equals 0.001 gigabytes. 0.001 is the exact factor used by this converter.
How do I convert megabytes to gigabytes?
Multiply the value in megabytes by 0.001. To go the other way, multiply gigabytes by 1,000.
What is 10 MB in GB?
10 MB = 0.01 GB. Also, 5 MB = 0.005 GB and 100 MB = 0.1 GB.
What is the difference between a megabyte and a gigabyte?
A megabyte is 1,000,000 bytes, roughly the size of a short MP3 minute or a photo. A gigabyte is 1,000,000,000 bytes and the common unit for phone storage and data plans.
Is this tool free and private?
Yes — the Megabyte to Gigabyte is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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