Number Base Converter
Convert numbers between Binary, Octal, Decimal, and Hexadecimal. Type in any field to convert all others instantly.
Decimal (10)
Hex (16)
Binary (2)
Octal (8)
How to use
- Type a number in any field — decimal, hex, binary, or octal.
- All other fields update automatically.
- Click Copy next to any field to copy the value.
Number bases explained
- Binary (base 2) — uses digits 0–1. The language of computers at the hardware level.
- Octal (base 8) — uses digits 0–7. Common in Unix file permissions.
- Decimal (base 10) — uses digits 0–9. Standard human counting system.
- Hexadecimal (base 16) — uses digits 0–9 and A–F. Used in colors (#FF5733), memory addresses, and encoding.
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