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. Mortgage Calculator Use this calculator to view the total interest and total payment for a mortgage based on the loan amount, years of payments, and annual interest rate you enter. Social Security Calculator Estimate your Social Security benefits using the Social Security Administration's Quick Calculator. Auto Loan Payment Calculator Use this calculator to calculate an auto loan amount based on your desired monthly payment or to calculate a monthly payment based on an auto loan amount. Retirement Income Planner Use this calculator to evaluate your retirement income plan. Regular IRA vs. Roth IRA - Annual Contribution Use this calculator to determine whether a regular IRA or a Roth IRA is right for you. Buying vs. Leasing - Auto Use this calculator to determine if you should lease or buy your next vehicle. Paycheck Calculator - Hourly This calculator computes gross and net pay for an hourly paycheck and displays the various withholdings. Minimum IRA Distribution Use this calculator to determine the amount that the federal government requires you to withdraw annually from your IRA. Monthly to Bi-Weekly Loan Conversion This calculator shows how much sooner a loan or mortgage can be paid off and how much interest and expense can be saved if the payments are changed from monthly to bi-weekly and the payment amount is cut in half. Paycheck Calculator - Salaried This calculator computes net or gross pay for a single paycheck and displays the various withholdings.