Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Related Content How Income Taxes Work A quick look at how federal income taxes work. Acres of Diamonds In life it often happens that the answers to our most pressing questions are right in our own backyards. Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers.