Gigabytes to Megabytes Converter
Convert gigabytes (GB) to megabytes (MB) instantly. Type a value above and the result updates while you type. 1 gigabyte equals 1000 megabytes.
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
1 gigabyte = 1000 megabytes
Multiply the gigabytes value by 1000 to get megabytes. Or divide by 0.001 to go the other way.
Gigabytes to megabytes conversion table
| GB | MB |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 8 | 8000 |
| 10 | 10,000 |
| 16 | 16,000 |
| 25 | 25,000 |
| 32 | 32,000 |
| 50 | 50,000 |
| 64 | 64,000 |
| 100 | 100,000 |
| 128 | 128,000 |
| 250 | 250,000 |
| 256 | 256,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
Worked examples
- 5 GB × 1000 = 5000 MB
- 30 GB × 1000 = 30,000 MB
- 165 GB × 1000 = 165,000 MB
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
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Frequently asked questions
How many megabytes are in 1 gigabyte?
1 gigabyte equals 1000 megabytes (GB → MB).
How do you convert gigabytes to megabytes?
Multiply the number of gigabytes by 1000. For example: 10 GB × 1000 = 10,000 MB.
What is 50 GB in MB?
50 GB equals 50,000 MB.
Which is bigger: 1 gigabyte or 1 megabyte?
1 gigabyte is bigger: it equals 1000 megabytes.