Calculate Simple Interest using C#.NET

Simple Interest - Quickest method to calculate the interest on a loan. Simple Interest is calculated by multiplying the Interest Rate by the Principal by the Number of Periods.

Formula:

Simple Interest(SI) = P * I * N

P - Loan amount

I - Interest Rate

N - Duration of Loan Period

Program:

namespace DotNetMirror
{
    class SimpleInterestClass
    {
        static void Main()
        {
            double P, R, SI,N, finalAmount;
            Console.Write("Enter Principal(Loan Amount) : ");
            P = Convert.ToDouble(Console.ReadLine());
            Console.Write("Enter Time Period(Years) : ");
            N = Convert.ToDouble(Console.ReadLine());
            Console.Write("Enter Rate Of Interest(%) : ");
            R = Convert.ToDouble(Console.ReadLine());

            SI = P * N * (R / 100); //formula
            finalAmount = P + SI;

            Console.WriteLine("Interest earned : {0}", SI);
            Console.WriteLine("Final amount after interest : {0}", finalAmount);
            Console.ReadLine();

        }
    }
}

Output:

Note: Simple Interest does not calculate based on compounding. Interest amount will be always on Principal, so Interest on Interest is not included. Simple Interest will be useful for Short Term periods.