Gigabytes to Bytes Converter
Convert gigabyte to byte instantly. Type a value below — the result updates as you type.
When you need to convert gigabyte to byte
Data-size conversions help when checking download limits, storage capacity, backup sizes or mobile data caps, where marketing units and operating-system units don't always agree.
Typical values: 0.5 GB is about 5e+08 B, and 5 GB works out to roughly 5e+09 B. Because the ratio is fixed at 1e+09, you can scale any amount linearly — doubling the gigabytes doubles the bytes.
Drive makers count in powers of 1000 while many systems display powers of 1024, which is why advertised and reported capacities differ.
How to convert gigabyte to byte
One gigabyte equals 1e+09 bytes. To convert, multiply the number of gigabytes by 1e+09:
bytes = gigabytes × 1e+09
For example, 10 gigabytes × 1e+09 = 1e+10 bytes.
Gigabytes to bytes conversion table
| Data (GB) | Bytes (B) |
|---|---|
| 1 GB | 1e+09 B |
| 2 GB | 2e+09 B |
| 3 GB | 3e+09 B |
| 5 GB | 5e+09 B |
| 10 GB | 1e+10 B |
| 20 GB | 2e+10 B |
| 50 GB | 5e+10 B |
| 100 GB | 1e+11 B |
FAQ
How many bytes are in a gigabyte?
One gigabyte = 1e+09 bytes.
How do I convert bytes back to gigabytes?
Divide by 1e+09, or use the bytes to gigabytes converter.