Hex Converter

Convert between Hexadecimal (base-16), Decimal (base-10), Binary (base-2), and Octal (base-8)

💡 Hex: 0-9, A-F | Decimal: 0-9 | Binary: 0-1 | Octal: 0-7 | Case insensitive

📖 How to Use This Hex Converter

Enter the number - Type or paste the number you want to convert.

Select the source base - Choose from Hexadecimal, Decimal, Binary, or Octal.

Select the target base - Choose the number system you want to convert to.

🔢 Understanding Hexadecimal (Base-16)

Hexadecimal (hex) is a base-16 number system widely used in computing. It uses 0-9 and A-F (A=10, B=11, C=12, D=13, E=14, F=15).

📊 Hex Conversion Methods

Hex to Decimal: Multiply each digit by 16^position and sum.
FF₁₆ = 15×16 + 15 = 255₁₀
Decimal to Hex: Repeatedly divide by 16, read remainders backwards.
255₁₀ ÷ 16 = 15 rem 15 (F) → FF₁₆

💻 Why Hexadecimal is Used

Memory Addresses: Compact representation of binary addresses
Color Codes: Web colors use hex (#FF0000 = red)
Debugging: Hex dumps show binary data in readable format
Unicode: Character codes often shown in hex

❓ Frequently Asked Questions

What is hexadecimal used for?

Used in programming for memory addresses, color codes, debugging, and representing binary data.

How do I convert hex to decimal?

Multiply each hex digit by 16^position and sum. FF = (15×16) + 15 = 255.

What is the difference between hex and binary?

Binary uses 0-1 (base-2). Hex uses 16 digits (0-9, A-F). One hex digit = 4 binary bits.

Why is A-F used in hexadecimal?

Hex needs 16 symbols. 0-9 provide 10, A-F represent values 10-15.