Number Base Converter
Enter a number and its source base, and instantly get the equivalent in decimal, binary, hexadecimal, and octal — all at once.
Enter a number and click Convert.
Quick reference
- Decimal (base 10): everyday numbers 0–9
- Binary (base 2): computer bit representation 0–1
- Hexadecimal (base 16): compact notation for binary, digits 0–9 and A–F
- Octal (base 8): used in Unix file permissions, digits 0–7
FAQ
Can I convert negative numbers?
Not currently. The tool handles non-negative integers only.
Is hex case-sensitive?
No. You can enter FF or ff — both are accepted for base 16.
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