123 Financial Calculator application has been designed to make the user aware of the various financial jargons used in everyday life, along with its computing. All this is made available at his or her fingertips. This app consists of Interest Calculator which calculates Simple and Compound Interest. Also it has a host of Financial Calculators which calculate CAGR, Net Present Value, Rate of Inflation, Return on Investment, Weighted Average to name a few. There is a Loan Calculation module which calculates the monthly loan payable.