Hexadecimal to Octal Converter

Hex (base 16) and octal (base 8) don't convert to each other directly with a simple digit lookup, because 16 and 8 aren't powers of a shared small base in a way that lines up digit-for-digit. This tool goes through the natural intermediate step: expand each hex digit to 4 binary bits, then regroup those bits into groups of 3 to read off as octal.

Worked example

FF → binary: F=1111, F=1111, so 11111111. Regroup from the right into 3s: 11 111 111 → pad to 011 111 111 → octal 3, 7, 7 → 377.

Where this comes up

• Cross-checking a hex value (memory address, color code, byte) against an octal representation used elsewhere in a system
• Legacy or embedded programming environments that mix octal and hex conventions
• Computer science coursework testing conversion between every pair of common number bases