C program to calculate Simple Interest

Write a C program to input principle (amount), time and rate (P, T, R) from user and find Simple Interest. How to calculate simple interest in C programming if principle, time and rate are given by user. C program for Simple Interest.

Input principle: 1200
Input time: 2
Input rate: 5.4
Output Simple Interest = 129.600006

Required knowledge

Fundamentals of C, Data types, Talking user input in C

Simple Interest

Simple Interest can be given by the formula:
Principle * Time * Rate / 100


 * C program to calculate simple interest

#include <stdio.h>

int main()
    float amount, time, rate, SI;

    // Read principle, rate and time from user
    printf("Enter principle (amount): ");
    scanf("%f", &amount);
    printf("Enter time: ");
    scanf("%f", &time);
    printf("Enter rate: ");
    scanf("%f", &rate);

    // Calculates simple interest
    SI = (amount * time * rate) / 100;

    printf("\nSimple Interest = %f", SI);

    return 0;

Enter principle (amount): 1200
Enter time: 2
Enter rate: 5.4
Simple Interest = 129.600006

Happy coding ;)

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1 comment:

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