Octal to Hexadecimal Converter
Convert octal (base-8) numbers to hexadecimal (base-16). Enter any octal number to get the hexadecimal equivalent.
Common Values
How It Works
Convert octal → binary → hex. Replace each octal digit with 3 binary bits, then regroup into sets of 4 from the right and convert to hex digits. Example: 377 → 011 111 111 → 1111 1111 → FF.
Worked Examples
| Octal | Hexadecimal |
|---|---|
| 7 | 7 |
| 17 | f |
| 37 | 1f |
| 77 | 3f |
| 100 | 40 |
| 177 | 7f |
| 200 | 80 |
| 377 | ff |
| 777 | 1ff |
Related Conversions
Frequently Asked Questions
- How do I convert octal to hex?
Convert octal to binary first (each octal digit becomes 3 bits), then convert binary to hex (every 4 bits becomes one hex digit).
- What is octal 377 in hex?
Octal 377 is FF in hexadecimal (255 in decimal).
- What is octal 777 in hex?
Octal 777 is 1FF in hexadecimal (511 in decimal).
- Is octal to hex conversion exact?
Yes, like all integer base conversions, this is always exact with no rounding.