Calculate Simple Interest
Program to calculate simple interest
BeginnerTopic: Basic Programs
C++ Calculate Simple Interest Program
This program helps you to learn the fundamental structure and syntax of C++ programming.
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
float principal, rate, time, interest;
cout << "Enter principal amount: ";
cin >> principal;
cout << "Enter rate of interest (per year): ";
cin >> rate;
cout << "Enter time (in years): ";
cin >> time;
// Simple Interest = (P * R * T) / 100
interest = (principal * rate * time) / 100;
cout << fixed << setprecision(2);
cout << "Simple Interest = " << interest << endl;
cout << "Total Amount = " << principal + interest << endl;
return 0;
}Output
Enter principal amount: 10000 Enter rate of interest (per year): 5 Enter time (in years): 2 Simple Interest = 1000.00 Total Amount = 11000.00
Understanding Calculate Simple Interest
Simple interest is calculated using the formula: SI = (P * R * T) / 100, where P is principal, R is rate, and T is time. This program reads these values, calculates the interest, and displays both the interest and total amount.
Note: To write and run C++ programs, you need to set up the local environment on your computer. Refer to the complete article Setting up C++ Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your C++ programs.