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HEX to Decimal Converter

Instantly convert any hexadecimal number into its decimal equivalent.

HEX Input

Decimal Output

Why Use This Tool? ✅

Fast & Accurate

Converts hexadecimal to decimal instantly and precisely as you type.

Perfect for Web Developers

An essential tool for converting HEX color codes (like #FF9900) into their RGB decimal components.

User-Friendly Interface

A simple, clean two-panel layout makes converting from HEX to decimal effortless.

Ideal for Learning

Helps students and developers understand the relationship between different number systems.

From Base-16 to Base-10: Understanding Hexadecimal 🔢

The hexadecimal (base-16) number system is a compact and human-friendly way to represent binary data. While computers operate in binary, hexadecimal is often used by programmers and engineers because it's much shorter and easier to read. This tool helps translate hexadecimal values back into the familiar decimal (base-10) system we use every day.

How to Convert from HEX to Decimal

Converting a hexadecimal number to decimal involves understanding place values, which are powers of 16. Starting from the rightmost digit, each position represents 16 to the power of 0, 1, 2, 3, and so on. Remember that the letters A through F represent the numbers 10 through 15.

Let's convert the HEX number `1A3`:

  1. Write down the HEX number: 1 A 3
  2. Assign place values to each digit, from right to left:
    • 3 * (16⁰) = 3 * 1 = 3
    • A (which is 10) * (16¹) = 10 * 16 = 160
    • 1 * (16²) = 1 * 256 = 256
  3. Add up the results: 3 + 160 + 256 = 419

So, the hexadecimal number 1A3 is equal to the decimal number 419. This converter performs this calculation instantly for any valid HEX string.

Common Uses of HEX

This conversion is vital in many areas of computing and web development:

  • Color Codes: In CSS and HTML, colors are often defined in HEX format, like #FF6347. This is actually three HEX numbers (FF, 63, and 47) that represent the Red, Green, and Blue (RGB) values. Converting them to decimal gives you the RGB values (255, 99, 71).
  • Memory Addresses: Programmers use hexadecimal to represent locations in computer memory because it's more concise than binary.
  • Character Encoding: Hexadecimal is used to represent ASCII or Unicode character codes, such as in URL encoding (e.g., %20 for a space).