GB to MB
Converts gigabytes to megabytes using both 1000 and 1024 and shows both answers exactly.
A gigabyte holds 1,000 megabytes under the decimal rule and 1,024 under the binary one. RAM is counted at 1,024: a 16 GB module holds 16,384 MB.
Drives and flash cards are counted by the manufacturer at 1,000, so 16 GB on a flash drive is 16,000 MB. Which rule you need depends on what you are counting.
Formula
At 1,000: MB = GB × 1,000. At 1,024: MB = GB × 1,024.
Ready values
| Gigabytes | At 1,000 | At 1,024 |
|---|---|---|
| 0.5 | 500 MB | 512 MiB |
| 1 | 1,000 MB | 1,024 MiB |
| 2 | 2,000 MB | 2,048 MiB |
| 4 | 4,000 MB | 4,096 MiB |
| 8 | 8,000 MB | 8,192 MiB |
| 16 | 16,000 MB | 16,384 MiB |
| 32 | 32,000 MB | 32,768 MiB |
| 64 | 64,000 MB | 65,536 MiB |
| 128 | 128,000 MB | 131,072 MiB |
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