Convert Gigabytes to Bytes

Whether you need to express a value in B instead of GB, this guide walks you through the exact steps. Digital storage conversions help when comparing file sizes, device capacities, and download speeds — note that these use binary (1024-based) multiples.

To convert, multiply the gigabytes value by 1.0737e+9. Written as an equation: B = GB × 1.0737e+9.

One gigabytes equals approximately 1073741824 B. This means you can multiply any GB value by 1073741824 to get the equivalent in B.

Worked example: 25 GB = 26843545600 B. Enter your own value in the converter above for instant results.

Common mistake: Marketing often uses decimal gigabytes (1 GB = 1,000 MB) while operating systems use binary gibibytes (1 GiB = 1,024 MiB) — check which standard applies.

Bookmark this page for quick GB to B conversions, or use the swap button to reverse the direction and convert B back to GB.