Compound Interest in c language

C Program To Calculate Compound Interest

You need to know :

• Arithmetic operators.
• Data type.
• BODMAS rule.                // To know precedence of an operator.
• Basic input and output system.

Formula Of Compound Interest :

Compound Interest = Principle * (1 + Rate / 100 )^T

or

ci  =  p * pow ( ( 1 + r / 100 ) , t )

Wondering what is pow!!  We got it covered, click here.

Tips To Do The Program :

• Take input of principle amount from user. store in a variable like principle.
• Do same from Time and Rate. Store it in some appropriate variables like time and rate.
• Now calculate the Compound Interest using the above formula and store it in a variable say ci.
• Lastly, show the value of ci to the user.
• Don't forget to optimize the program for a good look and output.

Code :

#include<stdio.h>

#include<math.h>

void main()

{   

    float p,t,r,ci;

    printf("Enter the principle amount : ");

    scanf("%f",&p);

    printf("Enter the rate : ");

    scanf("%f",&r);

    printf("Enter the time period : ");

    scanf("%f",&t);

    ci = p * pow((1+r/100),t);

    printf("\n\n The compound interest is : %f",ci);

}

 

Output :

Enter the principle amount: 1200

Enter the rate: 5.4

Enter the time period: 2

Compound Interest = 1335.433105