Developer Tools
Hex / Binary / Decimal Converter
Convert numbers between hexadecimal, binary, decimal, and octal formats.
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What is Hex / Binary / Decimal Converter?
A hex converter translates values between hexadecimal (base-16), decimal (base-10), octal (base-8), and binary (base-2) number systems. Hexadecimal is widely used in programming for memory addresses, color codes, and low-level data representation.
How to Use
- Enter a number in any supported base (hex, decimal, octal, or binary)
- The converter instantly shows the equivalent in all other bases
- Use the prefix guide: 0x for hex, 0b for binary, 0o for octal
- Copy any converted value with one click
Frequently Asked Questions
- Why is hexadecimal used in programming?
- Hex is compact and maps neatly to binary: each hex digit represents exactly 4 bits. This makes it ideal for memory addresses, color codes, and byte values.
- How do I convert hex to decimal manually?
- Multiply each hex digit by 16 raised to its position power (right to left, starting at 0), then sum. For example, 1A = 1x16 + 10x1 = 26.
- What do the letters A-F mean in hexadecimal?
- A=10, B=11, C=12, D=13, E=14, F=15. They represent the values 10-15 that need a single digit in base-16.