Gigabytes to Megabytes Converter
Megabytes (decimal)
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Mebibytes (binary)
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1 GB = 1000 MB (decimal) · 1 GiB = 1024 MiB (binary)
How to convert gigabytes to megabytes
To convert gigabytes to megabytes, multiply by 1000. For example, 5 GB × 1000 = 5000 MB. Going the other way, divide megabytes by 1000 to get gigabytes.
In binary, 1 GiB = 1024 MiB. This distinction matters when comparing storage advertised by manufacturers (decimal) vs what your operating system reports (binary).
1 GB = 1000 MB = 1,000,000 KB = 1,000,000,000 bytes (decimal). This conversion is commonly needed for understanding file sizes, storage capacity, and data transfer limits.
Gigabytes to megabytes conversion table
| Gigabytes (GB) | Megabytes (MB) | Common reference |
|---|---|---|
| 0.5 GB | 500 MB | SD video |
| 1 GB | 1000 MB | 1 hour HD video |
| 2 GB | 2000 MB | small game |
| 4 GB | 4000 MB | DVD movie |
| 8 GB | 8000 MB | USB flash drive |
| 16 GB | 16,000 MB | smartphone storage |
| 64 GB | 64,000 MB | standard smartphone |
| 128 GB | 128,000 MB | large smartphone |
| 256 GB | 256,000 MB | laptop SSD |