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Python | Convert the decimal number to binary without using library function
Decimal to binary in Python: Here, we are going to learn how to convert the given decimal number to the binary number without using any library function in Python?
By IncludeHelp Last updated : January 04, 2024
Problem statement
Given a decimal number and we have to convert it into binary without using library function.
Example
Consider the below example with sample input and output:
Input:
10
Output:
1010
Python code to convert decimal to binary
# Python code to convert decimal to binary
# function definition
# it accepts a decimal value
# and prints the binary value
def decToBin(dec_value):
# logic to convert decimal to binary
# using recursion
bin_value =''
if dec_value > 1:
decToBin(dec_value//2)
print(dec_value % 2,end = '')
# main code
if __name__ == '__main__':
# taking input as decimal
# and, printing its binary
decimal = int(input("Input a decimal number: "))
print("Binary of the decimal ", decimal, "is: ", end ='')
decToBin(decimal)
Output
The output of the above example is:
First run:
Input a decimal number: 10
Binary of the decimal 10 is: 1010
Second run:
Input a decimal number: 963
Binary of the decimal 963 is: 1111000011
To understand the above program, you should have the basic knowledge of the following Python topics:
Python Basic Programs »