Loan Amortization Calculator Use this calculator to calculate a loan amount based on your desired monthly payment or to calculate a monthly payment based on a loan amount. Social Security Calculator Estimate your Social Security benefits using the Social Security Administration's Quick Calculator. Years to Become a Millionaire This calculator computes the number of years it will take for an initial investment along with monthly contributions to accumulate to $1 million. Ratio Calculators Use these calculators to assess your company's liquidity, profitability and efficiency based on your financial statement data.