Gigabyte to Megabyte
1 GB = 1000 MB
How to convert gigabyte to megabyte
Enter the value in gigabyte (GB) above and the equivalent in megabyte (MB) updates as you type. This conversion comes up when buying storage: why a "1 TB" drive shows 931 GB in the OS.
- A Netflix movie in HD is roughly 3 GB per hour → that is 1000 MB in megabyte.
Typical situations: estimating download times from connection speed; comparing phone storage tiers and cloud plans.
You can also convert in the other direction: Megabyte to Gigabyte
Gigabyte to Megabyte conversion table
| Gigabyte (GB) | Megabyte (MB) |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
Watch out for
- GB (storage) vs Gb (transfer speed): a byte is 8 bits, so 1 Gbps line transfers at most 125 MB/s
- Decimal (1 GB = 1000 MB, as drive makers count) vs binary (1 GiB = 1024 MiB, as operating systems report)
Frequently asked questions
How many megabytes is 1 gigabyte?
1 gigabyte = 1000 megabytes.
What is the formula to convert gigabyte to megabytes?
The formula is: MB = GB × 1000.
What is 10 gigabytes in megabytes?
10 gigabytes = 10000 megabytes.