# Simple Interest SI Calculation

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 than enter the values for :

P = 100 , R = 10% and T = 3 years.

SI = (100 X 10 X 3)/100 = 30