# C Program to Converter a Binary to Decimal

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## Converter a Number from Binary to Decimal

In the following example, we will convert a Binary number (1000001) to a Decimal number (65).

**Tips**: It is recommended to use our online Binary to Decimal converter for better understanding.

### Example

C Compiler

#include <stdio.h>
#include <math.h>;
int main()
{
int num = 1000001;
int arr[50];
int i = -1, j, total = 0;
while(num != 0)
{
i++;
arr[i] = num % 10;
num = num / 10;
}
for(j=i; j>=0; j--)
total += (arr[j] * pow(2, j));
printf("Decimal number of 1000001 (binary) is %d", total);
return 0;
}

### Output

Decimal number of 1000001 (binary) is 65

## Converter any Given Binary Number to Decimal Number

In the following example, we will convert any given binary number to a decimal number.

### Example

C Compiler

#include <stdio.h>
#include <math.h>;
int main()
{
int num, copyNum, arr[50];
int i = -1, j, total = 0;
printf("Enter a Binary Number: ");
scanf("%d", &num);
copyNum = num;
while(copyNum != 0)
{
i++;
arr[i] = copyNum % 10;
copyNum = copyNum / 10;
}
for(j=i; j>=0; j--)
total += (arr[j] * pow(2, j));
printf("Decimal number of %d (binary) is %d", num, total);
return 0;
}

### Output

Enter a Binary Number: 1010
Decimal number of 1010 (binary) is 10

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