Gigabytes to Megabytes Converter
Enter gigabytes to get megabytes instantly. Works both ways.
How to convert GB to MB
To convert gigabytes to megabytes, multiply by 1,000. For example, 100 GB × 1,000 = 100,000 MB.
Need it the other way? Convert megabytes to gigabytes.
Gigabytes to Megabytes at a glance
- 1 gigabyte = 1,000 megabytes
- 5 gigabytes = 5,000 megabytes
- 10 gigabytes = 10,000 megabytes
- 50 gigabytes = 50,000 megabytes
- 100 gigabytes = 100,000 megabytes
- 1 megabyte = 0.001 gigabytes (the reverse)
Worked examples
25 gigabytes × 1,000 = 25,000 megabytes.
250 gigabytes × 1,000 = 250,000 megabytes.
1,500 gigabytes × 1,000 = 1,500,000 megabytes.
Converting back
To go from megabytes back to gigabytes, divide by 1,000 (or multiply by 0.001). For example, 100 megabytes ÷ 1,000 = 0.1 gigabytes.
Using a rounded factor
For a quick estimate you can use 1,000 in place of 1,000. That is accurate to within about less than 0.1%, which is fine for rough checks but not for exact work.
GB to MB chart
| Gigabytes | Megabytes |
|---|---|
| 1 GB | 1,000 MB |
| 2 GB | 2,000 MB |
| 4 GB | 4,000 MB |
| 8 GB | 8,000 MB |
| 16 GB | 16,000 MB |
| 32 GB | 32,000 MB |
| 64 GB | 64,000 MB |
| 100 GB | 100,000 MB |
| 128 GB | 128,000 MB |
| 256 GB | 256,000 MB |
| 500 GB | 500,000 MB |
| 512 GB | 512,000 MB |
| 1,000 GB | 1,000,000 MB |
| 1,024 GB | 1,024,000 MB |
| 2,000 GB | 2,000,000 MB |
More data storage conversions
Frequently asked questions
How many megabytes are in one gigabyte?
There are 1,000 megabytes in one gigabyte.
How do I convert GB to MB?
Multiply the value in gigabytes by 1,000.
How many gigabytes are in one megabyte?
There are 0.001 gigabytes in one megabyte.
What is 10 gigabytes in megabytes?
10 gigabytes = 10,000 megabytes.
How do I convert megabytes back to gigabytes?
Divide the value in megabytes by 1,000, or multiply it by 0.001.
Can I use a rounded factor for gigabytes to megabytes?
For quick estimates, 1,000 is close (within about less than 0.1%). Use 1,000 when you need the full figure.