Convert Gigabytes to Bytes
1 gigabyte is 1,000,000,000 B. One gigabyte is exactly 1000000000 bytes.
One gigabyte is 1000000000 bytes. To convert gigabytes to bytes, multiply by 1000000000; to go the other way, divide by 1000000000 or multiply by 1.0000 × 10^-9. The factor is exact rather than rounded: it follows from IEC 80000-13. Exactly one billion bytes.
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Bytes
1,000,000,000 B
- Gigabytes × 1000000000
value * 10000000001,000,000,000 B
1 gigabyte in every data unit
| Unit | Value | Exact factor |
|---|---|---|
| bytes | 1,000,000,000 B | × 1,000,000,000 |
| kilobytes | 1,000,000 kB | × 1,000,000 |
| megabytes | 1,000 MB | × 1,000 |
| gigabytes (as entered) | 1 GB | — |
| terabytes | 0.001 TB | × 0.001 |
| kibibytes | 976,562.5 KiB | × 976,562.5 |
| mebibytes | 953.6743164 MiB | × 953.674316406 |
| gibibytes | 0.9313225746 GiB | × 0.931322574615 |
Factors are entered by hand from IEC 80000-13 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert gigabytes to bytes?
- 1.Take the measurement in gigabytes.
- 2.Multiply by 1000000000 — that is how many bytes fit in one gigabyte.
- 3.To go back the other way, divide by 1000000000, or multiply by 1.0000 × 10^-9.
Gigabytes to bytes conversion table
| Gigabytes | Bytes |
|---|---|
| 1 GB | 1,000,000,000 B |
| 2 GB | 2,000,000,000 B |
| 3 GB | 3,000,000,000 B |
| 4 GB | 4,000,000,000 B |
| 5 GB | 5,000,000,000 B |
| 6 GB | 6,000,000,000 B |
| 7 GB | 7,000,000,000 B |
| 8 GB | 8,000,000,000 B |
| 9 GB | 9,000,000,000 B |
| 10 GB | 10,000,000,000 B |
| 12 GB | 12,000,000,000 B |
| 15 GB | 15,000,000,000 B |
| 20 GB | 20,000,000,000 B |
| 25 GB | 25,000,000,000 B |
| 50 GB | 50,000,000,000 B |
| 100 GB | 100,000,000,000 B |
What are gigabytes and bytes?
- Gigabyte (GB)
- Exactly one billion bytes. This is why a "1 TB" drive shows as roughly 931 GB in Windows: the drive is sold in decimal and displayed in binary.
- Byte (B)
- Eight bits. The smallest unit storage is actually sold and addressed in.
Source: IEC 80000-13 — binary prefixes for information quantities
Questions people actually ask
- How many bytes are in a gigabyte?
- 1000000000. Eight bits. The smallest unit storage is actually sold and addressed in.
- How do I convert bytes back to gigabytes?
- Divide by 1000000000, or multiply by 1.0000 × 10^-9 — they are the same operation.
Other data conversions
Bytes to gigabytes — the same conversion the other way.