Binary & Base Converter

Convert between binary, decimal, octal and hex.

Result

Decimal42
Binary101010
Octal52
Hex2A

Binary & Base Converter — FAQs

How do I convert binary to decimal?

Each bit is worth 2^position: 101010 = 32 + 8 + 2 = 42.

How do I convert decimal to binary?

Divide by 2 repeatedly and record remainders bottom-up — 13 = 1101.

What is a byte vs a bit?

A bit is a single 0/1; a byte is 8 bits — one ASCII character.

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