Hexadecimal to Decimal Converter

Convert between hexadecimal (base-16) and decimal (base-10) number systems instantly. Perfect for programming, digital electronics, and computer science applications.

Hexadecimal Input (0-9, A-F)

Uppercase hex output

Allow signed values

Result

Enter a value to convert

Quick Examples

FF 0x7B 1A3F DEADBEEF 255 1024 65536

Frequently Asked Questions

What is hexadecimal?

Hexadecimal is a base-16 number system using digits 0-9 and letters A-F. It’s commonly used in programming and computer science because it provides a more compact way to represent binary data.

How do I convert hex to decimal?

Each hex digit represents a power of 16. For example, FF = (15 × 16¹) + (15 × 16⁰) = 240 + 15 = 255. Our converter shows this breakdown step by step.

Can this handle large numbers?

Yes, our converter uses precise string-based mathematics to handle numbers up to 64 hex digits without losing precision, making it suitable for cryptographic hashes and large integers.

What formats are supported?

You can enter hex values with or without the ‘0x’ prefix, in uppercase or lowercase. Examples: FF, 0xff, DeAdBeEf are all valid inputs.

Can I share my conversions?

Yes, use the Share button to generate a URL that preserves your input and settings. This makes it easy to save or share specific conversions with others.

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