How much do you need to retire?
The most common rule of thumb is that you need roughly 25 times your expected annual expenses saved by the time you retire. This figure comes from the 4% rule — the idea that you can withdraw 4% of your portfolio each year in retirement and have a high probability of your money lasting 30 years or more.
If you expect to spend $60,000 per year in retirement, you would need approximately $1.5 million saved. If you expect $80,000 per year, the target is $2 million. These are starting points, not guarantees — your actual needs depend on your health, lifestyle, Social Security income, and how long you live.
How this calculator works
This calculator uses compound growth to project your retirement balance based on four inputs: your current savings, your monthly contribution, your expected annual return, and the number of years until you retire. It assumes your contributions and return rate stay constant — a simplification, but one that gives you a meaningful directional answer: are you roughly on track, significantly behind, or ahead of where you need to be?
The role of your savings rate
How much you save each month matters more than almost any other variable in the early years of building wealth. A higher savings rate compounds just as powerfully as a higher return rate, with zero additional risk.
Financial independence researchers often point to savings rate as the single biggest lever available to most people. Someone saving 10% of their income may need 40 years to retire comfortably. Someone saving 30% may need only 25. The math is stark and largely indifferent to income level.
The 401(k) and IRA advantage
Retirement accounts offer two powerful advantages beyond compounding: tax deferral and, in some cases, employer matching.
In a traditional 401(k) or IRA, you contribute pre-tax dollars, reducing your taxable income today. Your investments grow without being taxed each year. You pay income tax only when you withdraw in retirement, typically at a lower rate than during your working years.
In a Roth 401(k) or Roth IRA, you contribute after-tax dollars. Your investments still grow tax-free, but qualified withdrawals in retirement are completely tax-free. For younger investors who expect to be in a higher tax bracket later, Roth accounts often make more sense.
Employer matching is essentially free money. If your employer matches 50% of contributions up to 6% of your salary, contributing at least 6% is a 50% instant return on that portion of your savings — no investment in the market comes close to that risk-free.
What return rate should you use?
The U.S. stock market has returned roughly 10% annually before inflation and around 7% after inflation over long historical periods. A diversified portfolio of stocks and bonds might return 6% to 7% annually over a long time horizon — a reasonable middle-ground assumption for retirement planning.
Be conservative rather than optimistic. Planning for 6% and ending up with 8% is a pleasant surprise. Planning for 10% and ending up with 6% could mean running short in your 80s.
Starting late is not the end
If this calculator shows you are behind, the instinct to feel discouraged is understandable — but the math still rewards action. Increasing your monthly contribution by even $200 to $300 can add tens of thousands of dollars to your final balance over a decade or more. Delaying retirement by a few years has an even larger effect, both by adding more compounding time and by reducing the number of years your savings need to last.