Compound Interest Rate Calculator is an online personal finance assessment tool enables you to calculate total compound interest or interest rate on your principal. An initial amount, maturity period, final return and compounding period are the key terms to determine which interest rate best suits on your financial transaction. Compound interest is possibly the most important concept in financial market, when it comes to successful long or short term money investing or lending or borrowing. You can compare alternatives and take the right decision for your financial welfare. By using this calculator, you can determine which financial institute provides you the best deal by comparing different interest rates