Retirement Savings Calculator

Estimate how much you'll have at retirement with employer match, compound growth, and inflation adjustment.

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Total at Retirement (Nominal)
$0
Saving for 35 years (age 30 to 65)
Total at Retirement (Today's Dollars)
$0
Adjusted for inflation — what your savings will actually buy
Total Contributions
$0
You + employer
Total Growth
$0
Investment returns
Monthly Income (4% Rule)
$0
Nominal (future dollars)
Monthly Income (Real)
$0
In today's dollars

How to Use This Retirement Calculator

  1. Enter your current age and target retirement age — the calculator determines how many years you have to save and grow your investments.
  2. Enter your current retirement savings — include all retirement accounts: 401(k), IRA, Roth IRA, and other investment accounts earmarked for retirement.
  3. Set your monthly contribution — this is how much you add each month. Even small increases make a big difference over decades thanks to compound growth.
  4. Add employer match details — enter your employer's match percentage and the salary percentage they match up to. Always contribute enough to capture the full match — it's free money.
  5. Adjust return and inflation rates — the default 7% return reflects the historical average for a diversified stock portfolio. The 3% inflation rate is the long-term U.S. average. Adjust these for conservative or aggressive scenarios.

Understanding Your Retirement Numbers

This calculator shows two versions of every result: nominal (future dollars) and real (today's dollars). The nominal value is the actual dollar amount you'll have. The real value shows what that money will buy in today's purchasing power. The real value is what matters most for planning — it tells you whether your savings will support your desired lifestyle.

The Power of Compound Growth

Compound growth is the engine of retirement savings. When your investments earn returns, those returns themselves earn returns in subsequent years. This creates an exponential growth curve that accelerates over time. For example, $500/month invested at 7% annual return grows to approximately $567,000 in 30 years — but $340,000 of that is investment growth, not your contributions. Starting early gives compound growth more time to work, which is why even modest contributions in your 20s can outperform larger contributions started in your 40s.

401(k) vs IRA: Choosing the Right Account

A 401(k) is offered through your employer with a contribution limit of $23,500 per year (2025), plus an additional $7,500 catch-up if you're 50 or older. The biggest advantage is employer matching — a 50% match on 6% of salary effectively gives you a 50% instant return on that portion. An IRA (Individual Retirement Account) has a $7,000 annual limit ($8,000 if 50+) but offers more investment choices. The optimal strategy is: contribute to your 401(k) up to the employer match, then max out a Roth IRA, then return to the 401(k) to max it out.

The 4% Rule and Monthly Retirement Income

The 4% rule is a widely used guideline stating you can withdraw 4% of your portfolio in the first year of retirement, then adjust for inflation each year, and your savings should last at least 30 years. This calculator uses the 4% rule to estimate your monthly retirement income. For a $1,000,000 portfolio, that's $40,000/year or about $3,333/month. Keep in mind this is a guideline — some financial planners now recommend 3.5% for added safety, especially for early retirees.

How Inflation Erodes Retirement Savings

Inflation is the silent threat to retirement planning. At 3% annual inflation, prices double roughly every 24 years. If you're 30 and planning to retire at 65, the cost of living will be approximately 2.8 times higher by then. This means $1,000,000 in 35 years will only buy what about $356,000 buys today. This calculator shows inflation-adjusted (real) values so you can see what your nest egg will truly be worth. To combat inflation, invest in assets that historically outpace it — stocks have returned roughly 10% annually before inflation (7% after), making them the core of most retirement portfolios.

Frequently Asked Questions

A common guideline is the 25x rule: multiply your desired annual retirement spending by 25. For example, if you need $50,000 per year in retirement, aim for $1,250,000 in savings. This is based on the 4% safe withdrawal rate, which research suggests allows your portfolio to last 30+ years. Your actual target depends on lifestyle, location, healthcare costs, and Social Security benefits.
The 4% rule suggests you can withdraw 4% of your retirement portfolio in the first year, then adjust for inflation each subsequent year, and your savings should last at least 30 years. On a $1,000,000 portfolio, that means $40,000 in the first year. This rule is based on historical market data and is a starting point — consult a financial advisor for a personalized withdrawal strategy.
Employer matching means your company contributes additional money to your 401(k) based on how much you contribute. A common match is 50% of your contributions up to 6% of your salary. For example, if you earn $60,000 and contribute 6% ($3,600/year), your employer adds 50% of that ($1,800/year). Always contribute at least enough to get the full employer match — it's an immediate 50% return on your money.
A 401(k) is employer-sponsored with higher contribution limits ($23,500 in 2025) and potential employer matching. An IRA is opened independently with a $7,000 annual limit. Both offer tax advantages — traditional versions defer taxes until withdrawal, while Roth versions use after-tax dollars but grow and withdraw tax-free. Many people use both to maximize retirement savings.
Inflation reduces the purchasing power of your money over time. At 3% annual inflation, $1,000,000 in 30 years will only buy what roughly $412,000 buys today. This calculator shows both nominal and inflation-adjusted values so you can plan realistically. Investing in growth assets like stocks helps your savings outpace inflation over the long term.