Decimal to Hex Converter

Enter value and click on calculate. Result will be displayed.
Enter decimal number :

Result:
Hex number :
Binary number :
Binary signed 2's complement :

A Decimal to Hex Converter is a tool that converts numbers from the decimal (base-10) numbering system to the hexadecimal (base-16) numbering system.

What:

  • Decimal (Base-10): This is the numbering system we use in everyday life — it has 10 digits (0–9).
  • Hexadecimal (Base-16): This system uses 16 symbols: 0–9 and A–F (where A = 10, B = 11, and so on up to F = 15).
  • A Decimal to Hex Converter takes a number like 255 (decimal) and converts it to FF (hex).

Why:

  • Hexadecimal is compact: It represents large binary values more concisely.
  • Used in computing: Hex is often used for memory addresses, color codes (like #FF5733), and low-level programming.
  • Readability: It’s easier to read and manage than long binary strings.

How:
To convert decimal to hex manually:

  1. Divide the decimal number by 16.
  2. Record the remainder (this becomes a hex digit).
  3. Repeat with the quotient until the quotient is 0.
  4. Combine the remainders in reverse order.

For example, converting 255 to hex:

  • 255 ÷ 16 = 15, remainder 15 → F
  • 15 ÷ 16 = 0, remainder 15 → F
  • Hex: FF

When:

  • Web development: For hex color codes (like #FFFFFF for white).
  • Programming: Hex is common in low-level languages like C or when dealing with memory.
  • Networking: IP and MAC addresses often use hexadecimal.
  • Debugging: Hex values are often used in logs and error codes.