**Binary - Decimal Converter** is an online tool used for various applications in digital electronics to perform binary to decimal conversion and decimal to binary conversion. In digital computation, the binary numbers are the numeric codes to represent the decimal numbers. Whereas the decimal numbers are the numbers used in arithmetic calculations and which can be easily understandable by the humans. Binary numbers are strictly used in digital circuits to perform the arithmetic and other operations. Therefore, binary to decimal and decimal to binary conversions become very important to perform the operation analysis in digital electronics. This calculator comprises of two converters namely binary to decimal converter and decimal to binary converter and these two converters have been separated by the respective radio button. To perform binary to decimal conversion, select an appropriate radio button, enter the binary input and click on the button calculate will yield the equivalent decimal number. To perform decimal to binary conversion, select an appropriate radio button, enter the decimal input and click on the button calculate will yield the equivalent binary number