Octal to Hexadecimal
Convert octal numbers to hex instantly. For example, 377 in octal is FF in hex.
Octal to Hexadecimal — quick reference
| Octal | Hexadecimal |
|---|
How to use the Octal to Hexadecimal
- Type or paste your octal value on the left.
- Read the hex result on the right — separate multiple values with spaces.
- Copy the result, or check the reference table below.
About the Octal to Hexadecimal
This tool converts octal numbers to hex. Octal is base 8, written with the digits 0 through 7; hex is base 16, written with 0-9 and A-F. Type a value on the left and the hex result appears instantly, and you can convert several values at once by separating them with spaces.
Worked example. Go through decimal as a bridge: 377 in octal is 255 in decimal, and 255 in decimal is FF in hex. This tool does both steps at once.
Octal and hexadecimal are two ways of chunking the very same binary — octal in groups of three bits, hex in groups of four — so going from one to the other is really just a matter of regrouping, not recalculating. That keeps the result exact: a whole number carries across untouched, with no rounding at any stage. You will find more octal-to-hex pairs in the reference table to check by hand, and everything is computed in your browser, so the numbers you paste never travel to a server. For the reverse direction use the hex to Octal converter, or the all-in-one number base converter for arbitrary bases.
Frequently asked questions
What is 377 in octal converted to hex?
377 in octal equals FF in hex. You can confirm it with the worked example above, or by typing 377 into the converter.
Is this octal to hex conversion exact?
Yes. Converting a whole number between bases changes only how it is written, not its value, so there is no rounding. 377 and FF are the same quantity expressed in base 8 and base 16.
Can I convert more than one octal value at once?
Yes. Separate each octal value with a space and every one is converted to hex on its own, in order.
Is my data uploaded anywhere?
No. The conversion runs entirely in your browser with JavaScript; nothing you type is sent to a server.