# C++ Program to find Sum of Digits

You are Here:

## Find Sum of Digits

In the following example, we will add all the digits in the given number (12345) for just one time.

For example, 12345 = 1 + 2 + 3 + 4 + 5
i.e., 12345 = 15

### Example

C++ Compiler
#include <iostream> using namespace std; int main() { int num = 12; int copyNum = num; int total = 0; // Add Each digit from last digit while(copyNum != 0) { total += copyNum % 10; copyNum = copyNum / 10; } // result cout << "The sum of digit " << num <<": " << total; return 0; }

### Output

The sum of digit 12: 3

## Find Sum of any given Digits

In the following example, we will find the sum of any given digits.

### Example

C++ Compiler
#include <iostream> using namespace std; int main() { int num; cout << "Enter a (int) number: "; cin >> num; int copyNum = num; int total = 0; // Add Each digit from last digit while(copyNum != 0) { total += copyNum % 10; copyNum = copyNum / 10; } // result cout << "The sum of digit " << num <<": " << total; return 0; }

### Output

Enter a (int) number: 24 The sum of digit 24: 6

## Reminder

Hi Developers, we almost covered 90% of String functions and Interview Question on C++ with examples for quick and easy learning.

We are working to cover every Single Concept in C++.