Number Base Converter
Type in any base (Decimal, Binary, Hex, or Octal) to convert all others instantly.
Related Free Tools
About Free Binary, Decimal, Hexadecimal & Octal Converter
Convert numbers simultaneously between Decimal (base 10), Binary (base 2), Hexadecimal (base 16), and Octal (base 8) in real time.
How to Use
- Type a number into any of the four boxes: Decimal, Binary, Hexadecimal, or Octal.
- All three other number bases update instantaneously.
Key Features & Benefits
- Built for computer science students, embedded engineers, and web developers.
- Supports uppercase hexadecimal output (0-9, A-F).
Frequently Asked Questions
How do I convert binary 11111111 to decimal?
Type 11111111 into the Binary box and the Decimal box immediately shows 255.
Type 11111111 into the Binary box and the Decimal box immediately shows 255.
What characters are valid in Hexadecimal?
Hexadecimal (base 16) uses digits 0-9 and letters A-F.
Hexadecimal (base 16) uses digits 0-9 and letters A-F.