Retirement Calculator

Retirement Calculator Guide

What This Tool Projects

Enter your current age, target retirement age, existing savings, monthly contribution, and desired annual income in retirement. The calculator compounds your balance year over year at your chosen return rate and compares the outcome to the income goal you need.

The engine assumes steady contributions until retirement and a sustainable withdrawal based on the 4% rule: withdrawing roughly 4% of your retirement portfolio each year. If the projected balance supports that income, you are on track; otherwise the gap shows how much you still need to close.

Variables That Move the Result Most

Time is the dominant factor: starting five years earlier can matter more than earning an extra point of return. Consistent monthly contributions accelerate growth because every added dollar also compounds for decades.

Your return assumption should match your horizon and risk tolerance. Many planners use 6–7% nominal for long-term diversified portfolios, but a more conservative rate makes sense within ten years of retirement. Remember these projections are nominal: for real purchasing power, subtract 2–3 points for inflation.

How to Use Results in Practice

If an income gap appears, try raising monthly contributions by 1–2% of net pay or delaying retirement a couple of years; often one of those moves closes most of the shortfall. Pair this tool with the compound interest calculator to see the effect of higher contributions, and with FIRE if you are targeting financial independence before traditional retirement age.

This calculator does not include Social Security, pensions, or rental income. Treat it as a model of your own savings and investments. For major decisions, validate with a certified planner.