How to convert gigabytes to megabytes
To convert gigabytes to megabytes, multiply the value by the conversion factor 1,024. To go the other way, multiply by 0.0009765625 (or divide by 1,024).
Worked example: 500 GB to MB
- Write the value: 500 GB
- Multiply by 1,024: 500 × 1,024
- Result: 512,000 MB
Gigabyte to Megabyte conversion table
Quick reference values, rounded to 6 significant digits.
| Gigabyte (GB) | Megabyte (MB) |
|---|---|
| 0.001 GB | 1.024 MB |
| 0.005 GB | 5.12 MB |
| 0.01 GB | 10.24 MB |
| 0.05 GB | 51.2 MB |
| 0.1 GB | 102.4 MB |
| 0.25 GB | 256 MB |
| 0.5 GB | 512 MB |
| 1 GB | 1,024 MB |
| 2 GB | 2,048 MB |
| 3 GB | 3,072 MB |
| 5 GB | 5,120 MB |
| 10 GB | 10,240 MB |
| 20 GB | 20,480 MB |
| 50 GB | 51,200 MB |
| 100 GB | 102,400 MB |
Megabyte to Gigabyte
| MB | GB |
|---|---|
| 1 MB | 0.000976563 GB |
| 5 MB | 0.00488281 GB |
| 10 MB | 0.00976563 GB |
| 50 MB | 0.0488281 GB |
| 100 MB | 0.0976563 GB |
1 Gigabyte in other data storage units
About Gigabyte and Megabyte
What is a gigabyte (GB)?
A gigabyte equals 1,024 MB. Mobile data packages and phone storage are sold in GB.
What is a megabyte (MB)?
A megabyte equals 1,024 KB. Photos, songs and documents are usually measured in MB.
Binary vs decimal: this converter uses 1 KB = 1,024 bytes, which matches Windows, Android file managers and most upload forms. Storage manufacturers use 1 KB = 1,000 bytes, which is why a “128 GB” phone shows about 119 GB.
Where gigabyte to megabyte conversion is used
Data storage conversions are needed for internet packages, file sizes, phone storage, upload limits on job and exam sites, and hard drives. Converting between gigabytes and megabytes is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Data Storage Converter.
Frequently asked questions
How many megabytes are in 1 gigabyte?
1 Gigabyte equals 1,024 MB.
How do I convert gigabytes to megabytes?
Multiply the number of gigabytes by 1,024. For example, 500 GB × 1,024 = 512,000 MB.
What is 500 GB in MB?
500 GB = 512,000 MB.
How many gigabytes are in 1 megabyte?
1 Megabyte equals 0.000976563 GB. Use the MB to GB converter for the reverse direction.
Is this Gigabyte to Megabyte converter accurate?
Yes. It uses exact internationally defined conversion factors, calculated with full floating-point precision. Results are displayed rounded for readability.