Hexadecimal (hex) is the base-16 number system using digits 0-9 and letters A-F (where A=10, B=11... F=15). It's widely used in computing for colors, memory addresses, and compact binary representation.

How do hex color codes work?

Hex color codes like #FF5733 represent RGB colors. The first two characters are red (FF=255), next two are green (57=87), last two are blue (33=51). Each pair is a hex number from 00 to FF (0-255).

Why use hexadecimal instead of decimal?

Hex is convenient for computers because each hex digit represents exactly 4 binary bits. Two hex digits = 1 byte. It's more compact than binary and aligns perfectly with computer architecture.

Biggest Calculator Hub

Math & StatisticsVerifiedFeb 2026

Hexadecimal Converter

Name: Hexadecimal Converter
Author: Biggest Calculator Hub

Convert between hexadecimal (base 16), decimal (base 10), and binary (base 2). Essential for web colors, programming, and computer science.

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How to Use the Hexadecimal Converter

This free hexadecimal converter helps you quickly calculate decimal. Simply enter your values in the fields above and click "Calculate" to see your results instantly.

Understanding Your Results

After entering your information, the calculator will display your results including decimal, hexadecimal, binary, as rgb color code. Each result is calculated using standard formulas used by financial professionals and experts in the field.