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Hex Calculator

Convert numbers between Decimal and Hexadecimal systems instantly.

Base-16 Converter

Convert decimal values to hexadecimal notation.

Hexadecimal is used in computing to represent binary data compactly. Each hex digit corresponds to exactly 4 bits (a nibble).

Nibble Decomposition

Total Bits
8 bits
Binary Stream
1111 1111

Conversion Tip

To manually convert Hex to Binary, replace each digit with its 4-bit equivalent. For example, A is 1010, and B is 1011.

Understanding the Hex Calculator

Convert decimal numbers to hexadecimal notation. Visualize how 'Nibbles' (4-bit groups) map to hex digits like A-F.

Guide

How to use the Hex Calculator

  • 1Enter a 'Decimal' number (e.g., 255) to see the Hex result.
  • 2Or, enter a 'Hex' code (e.g., FF, A1) to see the Decimal value.
  • 3Observe the 'Nibble Decomposition' to see the binary bits behind each hex digit.
  • 4Use this tool to decode color codes or memory addresses.
Applications

Common Use Cases

Web Development: Translating RGB colors to Hex codes (e.g., #FF5733).
Debugging: Reading memory dumps and error codes.
Assembly Programming: Writing low-level machine instructions.
Network Addresses: MAC addresses are typically written in Hex.

The Maths Behind the Calculation

Hex Digit = 4 bits (Nibble)

Hexadecimal (Base 16) condenses binary. Every 4 binary bits (0-15) correspond exactly to one Hex digit (0-9, A-F). This makes reading long binary strings much easier.

Knowledge Base

Frequently Asked Questions

What does '0x' mean?

'0x' is a common prefix used in programming to indicate that the following number is in Hexadecimal format (e.g., 0xFF).

Why does Hex use letters?

Base 10 uses 0-9. Base 16 needs 6 more symbols for values 10-15. We use A=10, B=11, C=12, D=13, E=14, F=15.

What is the max value of 2 hex digits?

FF is the maximum, which equals 255 in decimal. This is exactly one Byte (8 bits).

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