In this post we will cover how to convert decimal number to binary number. For binary to decimal conversion refer - [Binary to Decimal Number Conversion](binary-to-decimal-number-conversion).
Procedure
To convert a decimal number to any other number system, follow these steps:
- Modulo Operation: Compute the remainder of the number when divided by the base, i.e., number % base.
- Record the Remainder: Write down the remainder obtained.
- Division Operation: Divide the number by the base, i.e., number / base.
- Repeat: Continue the above steps until the number becomes zero (number > 0).
Finally, write down all the remainders in reverse order to get the binary representation.
Example
Let's convert into Binary format, where base value is 2.
Pictorial Explanation

Video Explanation
<div class="youtube-embed"><iframe src="https://www.youtube.com/embed/XvYaQ1mwo78" frameborder="0" allowfullscreen></iframe></div>
More Examples
Here's a quick reference table that shows the binary equivalents of decimal numbers from 0 to 9:
| Decimal | Binary |
|---|---|
| 0 | 0000 |
| 1 | 0001 |
| 2 | 0010 |
| 3 | 0011 |
| 4 | 0100 |
| 5 | 0101 |
| 6 | 0110 |
| 7 | 0111 |
| 8 | 1000 |
| 9 | 1001 |