About this tool
Convert gigabits to bytes instantly. Free, bidirectional, and fully in-browser.
1 gigabit equals 125000000 bytes — enter any gigabit value to convert it to bytes instantly. This Gigabit to Byte converter is a client-side tool: it applies a single multiplication (B = Gbit × 125000000) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert bytes back to gigabits. A reference table lists common gigabit values already converted, and nothing you enter is sent to a server.
Open Gigabit to Byte Converter on AltFTool — it loads instantly in your browser.
Type the value you want to convert into the Gigabit field.
Read the equivalent in bytes in the result field, and copy it if needed.
Use the decimal-places slider for more or less precision, or press swap to convert bytes to gigabits.
The result updates as you type, and the swap button flips the conversion to byte → gigabit without reloading.
The conversion uses the precise factor (B = Gbit × 125000000), so the number matches a manual calculation to the decimal places you choose.
A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.
Everything runs locally in your browser — no upload, no account, no limit on conversions.
One gigabit is 125000000 bytes. Multiply the gigabit value by 125000000 to convert. For example, 10 Gbit = 1250000000 B.
B = Gbit × 125000000. This tool applies it automatically and shows a worked example: 10 Gbit = 1250000000 B.
Yes. Press the swap button, or type into the byte field, and the tool converts bytes to gigabits using the inverse of the same relationship.
It uses the standard digital storage size definition (B = Gbit × 125000000), not a rounded approximation, so results are exact to the number of decimal places you select.
Yes. The converter is a browser-side script with no network calls: your values are never uploaded, and once the page has loaded it keeps working without a connection.
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