Hex to Octal Converter
Convert hex to octal: hex → binary (4 bits per digit) → group by 3, or hex → decimal → octal. Free base-16 to base-8 tool.
How to Convert Hex to Octal
Convert each hex digit to 4 bits, regroup in 3-bit chunks for octal—or convert through decimal.
Route 1: hex → binary (4 bits/digit) → regroup by 3 → octal. Route 2: hex → decimal → octal.
2A₁₆ = 00101010₂ → 053₈ (pad & group).
Less common today but appears in CS curricula.
CS base-conversion homework. The table and FAQ on this page walk through the factor if you need it.
Conversion Examples
Example: A hex to octal
- A=1010₂ → pad/group → 12₈
12 octal
Single hex digit.
Example: FF hex to octal
- FF=11111111₂ → 377₈
377 octal
Max byte in octal.
Common Use Cases
- CS base-conversion homework.
- Legacy data formats.
- Understanding multi-base paths.
- Exam verification.
Frequently Asked Questions
How do you convert hex to octal?
Convert hex to binary (4 bits per hex digit), then group binary in threes for octal.
Can you go through decimal?
Yes: hex → decimal → octal works for any size number.
FF hex in octal?
255 decimal = 377 octal (8-bit max).