Convert Gigabytes to Bytes to get the exact byte count behind a gigabyte figure — essential for programming and precise quotas.
Last reviewed on June 10, 2026
| Gigabytes (GB) | Bytes (B) | Typical Usage |
|---|---|---|
| 0.25 GB | 268,435,456 B | App cache |
| 0.5 GB | 536,870,912 B | Movie file |
| 1 GB | 1,073,741,824 B | OS installer |
| 2 GB | 2,147,483,648 B | DVD content |
| 4 GB | 4,294,967,296 B | Phone storage |
| 8 GB | 8,589,934,592 B | RAM module |
| 16 GB | 17,179,869,184 B | SD card |
| 32 GB | 34,359,738,368 B | Game install |
| 64 GB | 68,719,476,736 B | SSD capacity |
| 128 GB | 137,438,953,472 B | Drive capacity |
Code, configuration files, and storage APIs often need the exact number of bytes rather than a rounded gigabyte value.
1 GB = 1,073,741,824 B using the binary standard (1 step = ×1024), or 1,000,000,000 B using the decimal standard (1 step = ×1000).
To convert, multiply your GB value by the factor above. For example, 5 GB = 5,368,709,120 B (binary) or 5,000,000,000 B (decimal).
Operating systems and memory use the binary standard, where each unit step is 1,024. Storage manufacturers and network speeds use the decimal standard, where each step is 1,000. This converter supports both — switch modes above to match your context.
In binary (computer standard): 1 GB = 1,073,741,824 B. In decimal (manufacturer standard): 1 GB = 1,000,000,000 B.
Yes — GB is larger than B. 1 GB = 1,073,741,824 B (binary).
Multiply the GB value by 1,073,741,824 for binary, or 1,000,000,000 for decimal. You can also type any value into the converter above to see the result instantly.
Use binary (1024) for RAM, file sizes shown by your operating system, and programming. Use decimal (1000) for advertised drive capacities and network speeds.