Hexadecimal to Decimal Converter

Convert hexadecimal numbers to decimal values instantly with this free online calculator.

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About This Tool

This Hex to Decimal Calculator allows you to quickly convert hexadecimal numbers (base-16) to decimal numbers (base-10). Simply enter a hex value (e.g., 1A3F) and get the decimal equivalent along with binary representation and conversion steps. The tool supports both uppercase and lowercase hex digits (0-9, A-F) and includes validation for invalid characters. Perfect for programmers, students, and anyone working with digital systems.

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How to Use

Enter a hexadecimal number in the input field (e.g., FF, 1a3, 2B8E).
Click the 'Convert to Decimal' button.
View the decimal result, binary representation, and conversion steps in the output section.
Use the 'Clear' button to reset and perform another conversion.

Frequently Asked Questions

Find Quick Answers

What is a hexadecimal number?

Hexadecimal is a base-16 number system that uses digits 0-9 and letters A-F (or a-f) to represent values. It's commonly used in computing and programming.

How does the conversion work?

Each hex digit is converted to its decimal equivalent (0-15), then multiplied by 16 raised to the power of its position (starting from 0 on the right). The results are summed to get the decimal value.

What characters are valid in hex input?

Valid characters are digits 0-9 and letters A-F or a-f. The input can optionally start with '0x' (e.g., 0x1A), but this is not required.

Can I convert negative hex numbers?

This calculator currently supports positive hex numbers only. For negative numbers, additional representation methods (like two's complement) would be needed.

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