C++ Exercises: Calculate Compound Interest

C++ Basic: Exercise-55 with Solution

Write a C++ program to enter P, T, R and calculate compound interest.

Sample Solution:

C++ Code :

#include<iostream>
#include<math.h>
 
using namespace std;
 
int main()
{
    float p,r,t,cp,ci;
		cout << "\n\n Calculate the Compound Interest :\n";
		cout << " -------------------------------------\n"; 	
	cout<<" Input the Principle: ";
	cin>>p;
	cout<<" Input the Rate of Interest: ";
	cin>>r;
	cout<<" Input the Time: ";
	cin>>t;	
    ci=p*pow((1+r/100),t)-p;	
    cp=p*pow((1+r/100),t);
    cout<<" The Interest after compounded for the amount "<<p<<" for "<<t<<" years @ "<<r<<" % is: "<<ci;    
    cout << endl; 
	cout<<" The total amount after compounded for the amount "<<p<<" for "<<t<<" years @ "<<r<<" % is: "<<cp;    
    cout << endl; 
       cout << endl;
    return 0;
}

Sample Output:

Calculate the Compound Interest :                                     
 -------------------------------------                                 
 Input the Principle: 20000                                            
 Input the Rate of Interest: 10                                        
 Input the Time: 1.5                                                   
 The Interest after compounded for the amount 20000 for 1.5 years @ 10 
% is: 3073.8                                                           
 The total amount after compounded for the amount 20000 for 1.5 years @
 10 % is: 23073.8

Flowchart:

C++ Code Editor:

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