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While Loop Example Program in C

1 min read Updated June 30, 2026
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About this program

This is an example program in loop example programs. Read the concept first: Loop Control Statements, then study the code and output below.

Definition

In C++,a while loop is a control flow statement that allows code to be executed repeatedly based on a given boolean condition. The while loop can be thought of as a repeating if statement.

While Loop Syntax

while ( condition ) {
     Code to execute while the condition is true
}

Example Program For Simple While Loop In C Programming

/* Example Program For Simple While Loop In C Programming Language
little drops @ thiyagaraaj.com
Coded By:THIYAGARAAJ MP */

// Header Files
#include<stdio.h>
#include<conio.h>

//Main Function
int main()
{
	//Variable Declaration
	int endno,counter=0;

	// Read Input Value
	printf("Print Numbers Up to ....");
	scanf("%d", &endno);
	
	// Simple While Loop for Increase counter value
	while ( counter < endno)
	{
		counter++;
		printf("%d\n", counter);
	}

	// Wait For Output Screen
	getch();

	//Main Function return Statement
	return 0;
}

Sample Output:

Print Numbers Upto....13
1
2
3
4
5
6
7
8
9
10
11
12
13

Learn the concept first, then study the code:

Frequently Asked Questions

What does this C program do?
It is a C example program that demonstrates While Loop, including the complete source code and the expected sample output.
How do I compile and run this C program?
Save the code in a `.c` file, compile it with `gcc filename.c -o program`, then run it with `./program` (or `program.exe` on Windows).
What concepts does this example use?
This example uses loops to iterate over data, reading user input and user-defined functions, illustrating a common pattern in C programming.

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