Simple Interest SI Calculation

Select what you want to calculate (Simple interest, Rate of interest, Principle or Time) then enter the values in the respective rows and click calculate.
the interest will be charged on the borrowed/ lended amount. The money lended or borrowed is called principal, The interest on principal remains same for every month or every year and it is calculated from the principal amount, simple interest rate and length of the time.
Example : if you want to calculate SI enter the values for P = 100 , R = 10% and T = 3 years.
SI = (100 X 10 X 3)/100 = 30

I want to calculate =
Principal or Sum [P] =
Rate % per Annum [R] = %
Time [T] =
Simple Interest [S.I.] =