Number Base Converter
Convert numbers between decimal, binary, hexadecimal, and octal.
Frequently Asked Questions
Which number bases are supported?
Decimal (base 10), Binary (base 2), Hexadecimal (base 16), and Octal (base 8).
Can I enter negative numbers?
Currently the tool supports non-negative integers only.
How do I read a hexadecimal number?
Hex uses digits 0–9 and letters A–F (case-insensitive). For example, "FF" equals 255 in decimal.
Why is "0x" shown before hex results?
"0x" is the standard programming prefix that indicates a hexadecimal number, used in C, JavaScript, Python, and most other languages.