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Decimal to binary conversion is the process of converting numbers from the decimal number system (base 10) to the binary number system (base 2). Our online tool makes this conversion quick and easy, while also supporting conversions between other common number systems.
Binary (Base 2) uses only two digits, 0 and 1, and is the fundamental number system used by computers.
Decimal (Base 10) is the most commonly used number system in everyday life, using digits from 0 to 9.
Octal (Base 8) uses digits from 0 to 7 and was historically used in computing.
Hexadecimal (Base 16) uses digits from 0 to 9 and letters A to F, and is widely used in programming and digital electronics.
Our free online decimal to binary converter supports instant conversion between all these number systems. Simply enter a number in any base, and it will be automatically converted to the other three bases. Perfect for programmers, students, and anyone working with digital systems.