Number System Converter

Convert numbers between different numeral systems: decimal, binary, octal and hexadecimal. Perfect for programming and computer science.

Converter

Input system

DEC

Decimal

BIN

Binary

OCT

Octal

HEX

Hexadecimal

Number to convert

Only digits 0 to 9

Quick examples

Results

Decimal (Base 10)

Binary (Base 2)

Octal (Base 8)

Hexadecimal (Base 16)

Useful tips

Decimal uses base 10 (0-9), the system we normally use
Binary uses base 2 (0-1), the internal language of computers
Octal uses base 8 (0-7), common in Unix systems and programming
Hexadecimal uses base 16 (0-9, A-F), widely used in programming

What are number systems?

Number systems are different ways to represent numbers using different bases. Each system has a specific set of digits and rules. Programmers use different systems depending on the context and application.

Use cases

Essential for programming, software development, system administration, networking, cryptography, hardware design and any area related to computer science.