🏖️ Retirement Calculator
Plan your future — see how much you'll have saved by retirement and what it'll be worth in today's dollars.
📊 Your Retirement Projection
📋 Year-by-Year Projection
| Age | Balance | In Today's $ |
|---|---|---|
| Enter your details and click Calculate | ||
📘 How the Retirement Calculator Works
This calculator uses the future value of a growing annuity formula to project your retirement savings. It compounds your current savings forward at your expected annual return rate, then adds the future value of your ongoing monthly contributions.
The nest egg is the total amount you'll have at retirement. The in today's dollars value adjusts that nest egg backward for inflation, showing you what that future money would be worth in today's purchasing power.
The bar chart breaks your nest egg into two parts: total contributions (what you put in) and investment growth (what compound interest earned). The year-by-year table shows how your balance grows each year, helping you visualize the power of compound growth over time.
About the Retirement Calculator
What Is Retirement Planning?
Retirement planning is the process of figuring out how much money you'll need to live comfortably after you stop working — and then building a savings and investment strategy to get there. It's not just about picking a number; it involves estimating your future expenses, accounting for inflation, choosing the right retirement accounts (401(k), IRA, Roth IRA), and understanding how your investments might grow over a 30- or 40-year career. The earlier you start, the more time compound growth has to work in your favor, which means you can contribute less each month and still reach the same goal.
How This Calculator Works
This tool uses the future value of a growing annuity formula to project your retirement nest egg. It takes your current savings and compounds them forward at your expected annual return rate for the years until retirement. Simultaneously, it calculates the future value of your monthly contributions — each contribution grows at the same rate, but contributions made earlier have more time to compound. The result is split into two parts: total contributions (the money you actually put in) and investment growth (what compounding earned on top). The calculator also adjusts the final nest egg backward for inflation, showing you what that future money would be worth in today's purchasing power — because $1 million in 2055 won't buy what $1 million buys today.
Common Use Cases
401(k) planning: If your employer matches contributions (say, 50% up to 6% of your salary), model your total monthly contribution including the match to see its impact. IRA projections: Use the calculator to estimate how a Roth or Traditional IRA might grow over decades with consistent contributions. Catch-up planning: Started saving late? Increase your monthly contribution and adjust the expected return to see what it takes to close the gap. Inflation reality check: The "in today's dollars" figure often surprises people — it reveals that even a large nest egg may not stretch as far as they imagined. Use it to calibrate your savings target. Early retirement (FIRE): If you're pursuing financial independence, model aggressive savings rates and longer retirement horizons to see if your numbers work.
Tips and Best Practices
Start yesterday. A 25-year-old contributing $500/month at a 7% return retires at 65 with roughly $1.2 million. Wait until 35 and that drops to about $570,000. Wait until 45 and it's roughly $245,000. The math is brutal but fair: time is your greatest asset.
Maximize employer matches. An employer match is free, guaranteed return on your contribution. If your employer matches 50% up to 6%, contributing at least 6% of your salary gives you an instant 50% return — nothing else in investing comes close.
Be realistic about returns. The S&P 500 has historically returned about 10% annually before inflation (roughly 7% after). Use 6–8% for long-term stock-heavy portfolios. Expecting 12% will give you a dangerously optimistic projection.
Revisit your plan yearly. Life changes — salary increases, new jobs, kids, market shifts. Update your inputs at least once a year to stay on track.
Frequently Asked Questions
How much do I actually need to retire? A common rule of thumb is the 4% rule: multiply your annual expenses by 25 to get a target nest egg. If you expect to spend $60,000/year in retirement, aim for $1.5 million. This assumes you withdraw 4% (adjusted for inflation) each year and have a high probability of not running out of money over 30 years.
Roth vs. Traditional — which is better? Traditional accounts give you a tax break now (contributions reduce taxable income); Roth accounts give you tax-free withdrawals in retirement. If you expect to be in a higher tax bracket later, Roth is usually better. If you're in your peak earning years now, Traditional may save more. Many people use both.
Does this calculator account for Social Security? No. Social Security benefits vary based on your earnings history and the age you claim. Treat Social Security as a bonus on top of your personal savings, not as the foundation of your retirement plan.