In this post, we will learn **how to find the cube of a num**ber using the C++ Programming language.

When a number is multiplied **three** times by itself, the product obtained is called the **cube of a number**. For example: The cube of **2** is **2 x 2 x 2 = 8**.

We will calculate the cube of a number using the following approaches:

- Using Standard Method
- Using Function

So, without further ado, let’s begin this tutorial.

**C++ Program to Find Cube of a Number**

// C++ Program to Find Cube of a Number #include <iostream> using namespace std; int main(){ int n, cube; // Asking for input cout << "Enter a number: "; cin >> n; // Finding cube cube = n * n * n; // Displaying result cout << "Cube of " << n << " is: " << cube << endl; return 0; }

**Output**

```
Enter a number: 2
Cube of 2 is: 8
```

**How Does This Program Work ?**

int n, cube;

In this program, we have declared **two integer data type** variables named **n** and **cube**.

// Asking for input cout << "Enter a number: "; cin >> n;

The input is taken from the user with the help of **cin **statement. The entered value gets stored in the **n** named variable.

// Finding cube cube = n * n * n;

Cube is calculated by multiplying the same number three times.

// Displaying result cout << "Cube of " << n << " is: " << cube << endl;

The cube of the number calculated above is displayed on the screen using the **cout** statement.

**C Program to Find Cube of a Number Using Function**

// C Program to Find Cube of a Number Using Function #include <iostream> using namespace std; int cubeNum(int); int main(){ int n, cube; // Asking for input cout << "Enter a number: "; cin >> n; // Calling out function cube = cubeNum(n); // Displaying output cout << "Cube of " << n << " is: " << cube << endl; return 0; } int cubeNum(int x){ return (x * x * x); }

**Output**

```
Enter a number: 3
Cube of 3 is: 27
```

**Conclusion**

I hope after going through this post, you understand **how to find the cube of a number using the C++** Programming language.

If you have any doubt regarding the program, then contact us in the comment section. We will be delighted to solve your doubts.

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