What is the binary number system?

The binary number system is a base-2 system that uses only two digits, 0 and 1, to represent numbers. It's the fundamental system used in computers.

Can I convert fractions or decimal numbers with a fractional part?

This tool is designed to convert whole numbers (integers). To convert fractions, you need a different approach.

Are there any limitations on the size of the decimal number I can convert?

The tool can handle a wide range of decimal numbers, but extremely large numbers might be limited by processing power.

Decimal to Binary Converter

Convert decimal numbers (base-10) to binary numbers (base-2) with this simple online tool.

Decimal number

How to Use This Tool

Enter the decimal number you want to convert into the input field.
The binary equivalent will be displayed automatically.
Copy the result if needed.

Learn More About Decimal to Binary Converter

Decimal to Binary Conversion

To convert a decimal number to binary, repeatedly divide the decimal number by 2, noting the remainder at each step. The binary digits are the remainders, read in reverse order.

Example

Decimal: 10

10 / 2 = 5, remainder 0 5 / 2 = 2, remainder 1 2 / 2 = 1, remainder 0 1 / 2 = 0, remainder 1

Binary: 1010 (reading remainders in reverse)

About

Convert decimal numbers (base-10) to binary numbers (base-2) with this simple online tool. Just enter a decimal integer, and the converter will instantly display its binary equivalent.

Use Cases

Computer science education and learning about binary numbers
Digital circuit design and analysis
Low-level programming and embedded systems
Understanding how computers store data

Frequently Asked Questions