Octal to Hex Converter

Octal to Hex

Convert octal (base 8) numbers to hex (base 16) in your browser. Prefixes like 0o are accepted on input. Need the opposite direction? Convert Hex to Octal.

Related base conversions

• Hex to Octal(16 → 8)
• Binary to Octal(2 → 8)
• Binary to Hex(2 → 16)
• Octal to Binary(8 → 2)
• Octal to Decimal(8 → 10)
• Decimal to Octal(10 → 8)
• Decimal to Hex(10 → 16)
• Hex to Binary(16 → 2)

Frequently asked questions

How do I convert octal to hex?

Enter a octal value above. The hex result is highlighted, and you can copy the raw or prefixed form.

Does this support large integers?

Yes — conversions use BigInt so values are not limited to 32-bit or 64-bit ranges.

Can I convert other bases too?

Switch the input base, click a different result to set the target, or open the main number base converter.