Python Program To Convert Binary Number To Decimal And Vice-Versa

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A binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols 0 and 1. The decimal numeral system is the standard system for denoting integer and non-integer numbers.

All decimal numbers can be converted to equivalent binary values and vice versa for example, the binary equivalent of “2” is “10” to explore more visit binary to decimal converter. In this article, we will create Python programs for converting a binary number into a decimal and vice versa

Convert Binary to Decimal


# Taking binary input
binary = input("Enter a binary number:")

# Calling the function
BinaryToDecimal(binary)


def BinaryToDecimal(binary): 
    decimal = 0 
    for digit in binary: 
        decimal = decimal*2 + int(digit) 
    print("The decimal value is:", decimal)

# Taking binary input

binary = input("Enter a binary number:")

# Calling the function

BinaryToDecimal(binary)

def BinaryToDecimal(binary):

decimal = 0

for digit in binary:

decimal = decimal*2 + int(digit)

print("The decimal value is:", decimal)

Output


Enter a binary number:10
The decimal value is: 2

Enter a binary number:10

The decimal value is: 2

Pythonic way to convert binary into decimal

We can use the built-in int() function to convert binary numbers into decimals. The int() function converts the binary string in base 2 number.


binary_string = input("Enter a binary number :")

try:
    decimal = int(binary_string,2)  
    print("The decimal value is :", decimal)    
    
except ValueError:
    print("Invalid binary number")

binary_string = input("Enter a binary number :")

try:

decimal = int(binary_string,2)

print("The decimal value is :", decimal)

except ValueError:

print("Invalid binary number")

Output


Enter a binary number :10
The decimal value is : 2

Enter a binary number :10

The decimal value is : 2

Convert Decimal number into Binary number


decimal = input("Enter a decimal number :")

# Calling the function
DecimalToBinary(int(decimal))

def DecimalToBinary(decimal):       
    if decimal > 1: 
        DecimalToBinary(decimal // 2) 
    print(decimal % 2, end = '')

decimal = input("Enter a decimal number :")

# Calling the function

DecimalToBinary(int(decimal))

def DecimalToBinary(decimal):

if decimal > 1:

DecimalToBinary(decimal // 2)

print(decimal % 2, end = '')

Output


Enter a decimal number :22
10110

Enter a decimal number :22

10110

Pythonic way to convert decimal into binary

Python has bin() method to convert decimal numbers into binary. The bin() method converts and returns the binary equivalent string of a given integer.


decimal = input("Enter a binary number :")

binary = bin(int(decimal)).replace("0b", "")  
print("The decimal number is :", binary)

decimal = input("Enter a binary number :")

binary = bin(int(decimal)).replace("0b", "")

print("The decimal number is :", binary)

Output


Enter a binary number :10
The decimal number is : 1010

Enter a binary number :10

The decimal number is : 1010

Python Program to Convert Binary Number to Decimal and Vice-Versa

Convert Binary to Decimal

Output

Pythonic way to convert binary into decimal

Output

Convert Decimal number into Binary number

Output

Pythonic way to convert decimal into binary

Output

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Python Program to Convert Binary Number to Decimal and Vice-Versa

Convert Binary to Decimal

Output

Pythonic way to convert binary into decimal

Output

Convert Decimal number into Binary number

Output

Pythonic way to convert decimal into binary

Output

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