Potential Income from an IRA Estimate your monthly and annual income from various IRA types. 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? Retirement Traps to Avoid Beware of these traps that could upend your retirement. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.