1 GB = 1,000 MB. Windows counts in 1,024s instead, so there 1 GB = 1,024 MB. Enter any amount below to convert it.
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| GB | MB (decimal) | MB (Windows) |
|---|---|---|
| 1 GB | 1,000 | 1,024 |
| 2 GB | 2,000 | 2,048 |
| 5 GB | 5,000 | 5,120 |
| 10 GB | 10,000 | 10,240 |
| 25 GB | 25,000 | 25,600 |
| 50 GB | 50,000 | 51,200 |
| 100 GB | 100,000 | 102,400 |
| 250 GB | 250,000 | 256,000 |
| 500 GB | 500,000 | 512,000 |
Decimal units count in thousands (1 GB = 1,000 MB). Binary units count in 1,024s (1 GiB = 1,024 MiB). Windows uses binary but labels it KB, MB and GB, which is why the same file or drive can show two different sizes.
Speeds are in bits: 8 bits make a byte, so a 100 Mbps connection moves at most 12.5 MB per second. Real downloads usually run somewhat slower than the advertised speed.