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. Share | Related Content 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. Investment Strategies for Retirement Investment tools and strategies that can enable you to pursue your retirement goals.