Octal is base-8; digits 0–7. Each octal digit corresponds to exactly three binary bits.

What binary output do I get?

A string of 0s and 1s. Each octal digit expands to three bits (e.g. 7 → 111).

Yes. Conversion runs entirely in your browser.

Online Octal to Binary Converter

Convert octal numbers to binary in your browser. Enter octal digits (0-7), get binary (0 and 1)—free and client-side.

Octal

Result (Binary)

000

What is octal?: Octal is base-8; digits 0–7. Each octal digit corresponds to exactly three binary bits.
What binary output do I get?: A string of 0s and 1s. Each octal digit expands to three bits (e.g. 7 → 111).
Is this free?: Yes. Conversion runs entirely in your browser.

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