Python program to convert any base to decimal by using int() method

Last Updated : 13 Jul, 2020

Given a number and its base, the task is to convert the given number into its corresponding decimal number. The base of number can be anything like digits between 0 to 9 and A to Z. Where the value of A is 10, value of B is 11, value of C is 12 and so on.

Examples:

Input : '1011' 
base = 2 
Output : 11 

Input : '1A' 
base = 16
Output : 26

Input : '12345' 
base = 8
Output : 5349

Approach –

Given number in string form and base
Now call the builtin function int(‘number’, base) by passing the two parameters any base number in String form and base of that number and store the value in temp
Print the value temp

Python3

# Python program to convert any base 
# number to its corresponding decimal 
# number 
  
# Function to convert any base number 
# to its corresponding decimal number 
def any_base_to_decimal(number, base): 
      
    # calling the builtin function  
    # int(number, base) by passing  
    # two arguments in it number in 
    # string form and base and store 
    # the output value in temp 
    temp = int(number, base) 
      
    # printing the corresponding decimal 
    # number 
    print(temp) 
  
# Driver's Code 
if __name__ == '__main__' : 
    hexadecimal_number = '1A'
    base = 16
    any_base_to_decimal(hexadecimal_number, base)

Output:

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