# C Program to find sum of all odd numbers

Category: C Program

Tags: #cprogram#loops

Write a C Program to find the sum of all odd numbers from 1 to n using for loop and if statement. How to find the sum of all odd numbers from 1 to n using for loop and if statement. Logic to find the sum of all odd numbers from 1 to n.

## C Program to find the sum of all odd numbers from 1 to n

```
#include <stdio.h>
void main()
{
int i, n, sum = 0;
printf("Enter value of n: ");
scanf("%d", &n);
for (i = 1; i <= n; i++)
{
if (i % 2 != 0)
{
sum = sum + i;
}
}
printf("Sum of even numbers from 1-%d: %d", n, sum);
}
```

**Output**

```
Enter value of n: 20
Sum of even numbers from 1-20: 100
```