Gigabytes to Bytes converter
Convert gigabytes (GB) to bytes (B) — results update instantly as you type.
Gigabytes to Bytes
1 GB = 1,000,000,000 B
How to convert Gigabytes to Bytes
Digital storage is measured in bytes, with each step up multiplying by 1,000 in the SI convention used by storage manufacturers and this converter: 1 KB = 1,000 bytes, 1 MB = 1,000 KB, and so on up to petabytes. One byte always equals 8 bits.
All units convert through the bit. Because a byte is 8 bits, 1 MB equals 8,000,000 bits. Note that operating systems sometimes use binary units (KiB, MiB) where each step is 1,024 instead of 1,000.
Formula
GB × 1,000,000,000 = B
Multiply your gigabytes value by 1,000,000,000 to get bytes. For the reverse, divide by the same factor.
Gigabytes to Bytes conversion table
| Gigabytes | Bytes |
|---|---|
| 1 GB | 1,000,000,000 B |
| 2 GB | 2,000,000,000 B |
| 5 GB | 5,000,000,000 B |
| 10 GB | 10,000,000,000 B |
| 25 GB | 25,000,000,000 B |
| 100 GB | 100,000,000,000 B |
Common use cases
- Checking if a file fits on a USB drive or phone
- Comparing cloud storage plans in GB and TB
- Estimating download sizes from bandwidth
- Database and backup capacity planning
Frequently asked questions
In the decimal (SI) convention, 1 GB = 1,000 MB. In the binary convention used by some operating systems, 1 GiB = 1,024 MiB.