hexoctal
Hexadecimal to Octal Converter
Convert hexadecimal numbers to octal instantly, with the working shown.
To convert hexadecimal to octal, enter your value above and the result appears as you type. FF in hexadecimal is 377 in octal. Conversion uses arbitrary-precision integers, so very large values do not lose their low digits the way floating-point arithmetic would.
Runs in your browserAbout converting HEX to OCTAL
Hex is base 16 and maps exactly four bits per digit, which is why one byte is always two hex digits and why colours, memory addresses and hashes are written this way. Octal is base 8 and groups bits in threes. It survives mainly in Unix file permissions, where 755 means three sets of read/write/execute bits. As a worked example, FF (hex) equals 255 in decimal and therefore 377 in octal.
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