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Number Base Converter

Enter a number in any base and see all conversions instantly: Binary (base-2), Octal (base-8), Decimal (base-10), and Hexadecimal (base-16). Essential for programming, networking, and color codes.

Binary11111111
Octal377
Decimal255
HexadecimalFF
Bit Count8 bits

How to Convert Between Number Bases

Convert numbers between binary, octal, decimal, and hexadecimal using The IT Hustle's free Number Base Converter.

  1. 1
    Enter a numberType a number into the input field. Use the appropriate format for your chosen input base (e.g., 0-1 for binary, 0-9A-F for hex).
  2. 2
    Select the input baseChoose the base of your input number: Binary (2), Octal (8), Decimal (10), or Hexadecimal (16).
  3. 3
    View all conversionsAll four base representations are displayed simultaneously. Binary, Octal, Decimal, and Hex values update in real-time.
  4. 4
    Copy any resultClick the copy button next to any conversion to copy it to your clipboard.

Frequently Asked Questions

Hexadecimal (base-16) uses digits 0-9 and letters A-F to represent values. It's commonly used in programming for memory addresses, color codes (like #FF5733), and byte values.

Computers use binary (base-2) because digital circuits have two states: on and off. Every number, letter, and instruction is ultimately represented as a sequence of 0s and 1s.

Octal (base-8) uses digits 0-7. It's used in Unix file permissions (like chmod 755) where each digit represents read/write/execute permissions for owner, group, and others.

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