Minimum IRA Distribution Use this calculator to determine the amount that the federal government requires you to withdraw annually from your IRA. IRA Distribution Before Age 59 1/2 Calculator This calculator computes exceptions from the penalty for early distribution (before age 59 1/2) from an IRA. Social Security Calculator Estimate your Social Security benefits using the Social Security Administration's Quick Calculator. Retirement Income Planner Use this calculator to evaluate your retirement income plan.