This program converts binary number to equivalent decimal number.

## Example: Program to convert binary to decimal

In this program, we have created a user defined function `binaryToDecimal()`

for binary to decimal conversion. This programs takes the binary number (entered by user) as input and converts it into a decimal number using function. To understand this program, you should be familiar with the following C programming concepts:

#include <stdio.h> #include <math.h> int binaryToDecimal(long binarynum) { int decimalnum = 0, temp = 0, remainder; while (binarynum!=0) { remainder = binarynum % 10; binarynum = binarynum / 10; decimalnum = decimalnum + remainder*pow(2,temp); temp++; } return decimalnum; } int main() { long binarynum; printf("Enter a binary number: "); scanf("%ld", &binarynum); printf("Equivalent decimal number is: %d", binaryToDecimal(binarynum)); return 0; }

Output:

Enter a binary number: 1010111 Equivalent decimal number is: 87

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