Number System Converter

🔄 Universal Number Converter

Enter a value in any base and convert instantly. Click any result to copy.

Input Value

Bit Width

click to copy

Decimal (Base 10)

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click to copy

Binary (Base 2)

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click to copy

Octal (Base 8)

—

click to copy

Hexadecimal (Base 16)

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🔁 Complement Representations

Original (Unsigned)—

Sign & Magnitude—

1's Complement—

2's Complement—

Decimal (2's Comp)—

2's complement is the standard for representing negative integers in digital systems. Flip all bits (1's complement), then add 1.

🔢 BCD Encoding (Binary-Coded Decimal)

Each decimal digit is represented by its 4-bit binary equivalent.

Decimal Digit	BCD (4-bit)

Full BCD String—

📐 Quick Reference Table

Dec	Bin	Oct	Hex