Retirement Calculator

Free Retirement Calculator 2026 — Project Your Savings and Retirement Income

Retirement planning is one of the most important financial decisions you will ever make. Yet studies show that most Americans do not know if they are saving enough. Our free retirement calculator changes that. Enter your current age, target retirement age, current savings, monthly contributions, and expected returns to see a complete year-by-year projection of your retirement savings growth and estimated monthly income after retirement.

The 4% Rule Explained

The 4% rule is a widely used retirement planning guideline developed by financial planner William Bengen in 1994. It suggests that you can withdraw 4% of your retirement savings in your first year of retirement, adjusting for inflation each subsequent year, with a high probability of your savings lasting at least 30 years. Our retirement planner uses this rule to estimate your monthly retirement income based on your projected savings at retirement age.

For example, if you retire with $1,000,000 in savings, the 4% rule suggests you can withdraw $40,000 in your first year of retirement. That works out to approximately $3,333 per month. Combined with Social Security benefits (which average about $1,900 per month for retirees in 2026), this provides a foundation for estimating whether your retirement savings are on track.

Understanding Your Projection

Our retirement savings calculator generates a detailed year-by-year projection from your current age through age 90. Each row shows your age, projected savings balance, and estimated monthly retirement income after you reach your target retirement age. The projections account for compound growth during your working years and continued growth (at a more conservative rate) during retirement.

Three key numbers appear at the top of the results: your savings at retirement, your estimated monthly retirement income, and your projected savings at age 90. These three numbers give you an immediate sense of whether you are on track. If your projected income at retirement is less than you need, you can adjust your monthly contributions or retirement age and see the impact instantly.

Factors That Affect Your Retirement Plan

Savings rate: Increasing your monthly contribution by even $100 can add tens of thousands of dollars to your retirement nest egg due to compound interest over decades. Our calculator makes this visible so you can see exactly how much difference your savings rate makes.

Investment returns: The average annual return of the S&P 500 over the past 30 years is approximately 10% before inflation. We default to 7% as a more conservative estimate that accounts for inflation. Adjust this based on your actual investment strategy and risk tolerance.

Retirement age: Working just three to five years longer can dramatically increase your retirement savings while simultaneously reducing the number of years those savings need to support you. Our calculator helps you find the optimal retirement age for your financial goals.

Inflation: At 3% average inflation, the purchasing power of your savings decreases by about half every 24 years. Our calculator accounts for this so your projections reflect real purchasing power, not nominal dollars.

Who Should Use This Tool?

Young Professionals (20s and 30s): Starting early is the single biggest advantage in retirement planning. Use our calculator to see how much your current 401(k) or IRA contributions could grow by retirement age. The numbers might surprise you and motivate you to increase your savings rate.

Mid-Career Professionals (40s and 50s): This is the critical catch-up period. Our retirement income calculator helps you assess whether you are on track and how much more you need to save to reach your goals. The catch-up contribution rules allow those over 50 to contribute more to 401(k)s and IRAs.

Pre-Retirees (60s): As you approach retirement, our calculator helps you fine-tune your withdrawal strategy and confirm that your savings will last. Experiment with different retirement ages and monthly spending targets to find the optimal plan.

Financial Advisors: Use our calculator as a quick visualization tool during client meetings to demonstrate the impact of savings rate, investment returns, and retirement age on long-term outcomes.

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Use our free retirement calculator now. Enter your details above and see a complete projection of your retirement savings growth, estimated monthly income, and whether you are on track for the retirement you deserve.