How it's calculated
GB = MB ÷ 1024
MB = megabytes, GB = gigabytes. Divisor is 1024 (binary standard) or 1000 (decimal SI). Reverse: MB = GB × base.
Common values
| Megabytes | GB (binary, 1024) | GB (decimal, 1000) |
|---|---|---|
| 1024 MB | 1 GB | 1.024 GB |
| 2048 MB | 2 GB | 2.048 GB |
| 5000 MB | 4.883 GB | 5 GB |
| 10000 MB | 9.766 GB | 10 GB |
Common questions
Why are there two answers for the same number?
Binary math uses 1,024 MB per GB and matches RAM and Windows file sizes, while decimal uses 1,000 and matches drive labels and network speeds.
Which standard should I use?
Use binary for RAM and Windows reported sizes, and decimal for hard-drive capacity and internet plans.