Retirement Calculator — Free Savings Projector

Free retirement calculator with savings projection, 4% rule income, inflation adjustment, and growth chart. Plan your 401k/IRA — 100% client-side. 100% serverless.

🔒 100% Private
Completely Free
🌐 Runs in Browser
📦 Export Ready

Retirement Calculator — Free Savings Projector

Tool Workspace

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  1. Enter Details — Current age, retirement age, savings, monthly contribution, expected return, inflation.
  2. Calculate — See projected balance, real value, and monthly retirement income.
  3. View Chart — Visual growth chart showing deposits vs investment growth over time.
  4. Copy Results — Copy the summary to clipboard.

Retirement Calculator — Plan Your Financial Future

The Retirement Calculator helps you project your savings growth from now until retirement. Enter your current savings, monthly contributions, and expected returns to see how much you'll have — and how much monthly income it can generate using the 4% rule.

How It Works

The calculator compounds your savings monthly, adding your contributions and investment returns each month. It accounts for inflation to show the real purchasing power of your future savings.

Key Metrics

  • Projected Balance — Total savings at retirement.
  • Total Contributions — How much you actually deposited.
  • Investment Growth — Earnings from compound returns.
  • Real Value — Inflation-adjusted purchasing power.
  • Monthly Income — Sustainable withdrawal using the 4% rule.

The Power of Starting Early

Starting 10 years earlier can more than double your retirement savings. A 25-year-old contributing $500/month at 7% return will have $1.2M by age 65. Starting at 35 with the same contributions yields only $567K — less than half.

Privacy

All calculations run in your browser. No financial data is transmitted.

Frequently Asked Questions

What is the 4% rule?

The 4% rule suggests you can withdraw 4% of your retirement savings annually (0.33% monthly) without running out of money for at least 30 years. This calculator uses this rule to estimate monthly retirement income.

What return rate should I use?

Historically, the S&P 500 has returned about 10% annually before inflation, or about 7% after inflation. A conservative estimate of 6-7% is commonly used for long-term planning.

How does inflation affect my savings?

Inflation reduces the purchasing power of future money. The calculator shows both nominal balance and 'Real Value' adjusted for inflation, so you can see what your savings will actually be worth.

Is my financial data safe?

Yes. All calculations run 100% in your browser. No data is sent to any server.