# C Program to calculate Simple Interest1 min read

In this tutorial, we will write a program to find the Simple Interest in C. And the formula to calculate the Simple Interest (SI) is:

`SI = ((p * r * t) / 100)) where, p = Principal r = Rate of Interest t = Time Period`

Explanation:
The program takes the user input for Principal, Rate, and Time, calculates the result, and displays the result on the screen.

## C Program to calculate the Simple Interest

Output:

`Enter the principal: 34000 Enter the rate: 30 Enter the time: 5 The simple interest is: 51000.00`

The above source code to calculate the Simple Interest in C is compiled and ran successfully on a windows system. Browse through C Program to learn more.

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