Octal to Binary Converter
Convert octal numbers (base-8, digits 0–7) to binary instantly. Each octal digit maps to exactly 3 binary bits. Includes digit breakdown, reference table, batch conversion, and code snippets.
⚠️ Invalid octal — digits 0–7 only
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Octal
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Decimal
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Hex
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Total Bits
💡 Each octal digit (0–7) = exactly 3 binary bits.
0=000, 1=001, 7=111. Example: 123 = 001 010 011 = decimal 83