Retirement Savings Calculator
Retirement Savings by Starting Age
$500/month contribution, 7% annual return, retiring at 65
| Starting Age | Years Investing | Total Contributed | Projected Balance | Growth |
|---|---|---|---|---|
| 25 | 40 years | $240,000 | $1,197,811 | $957,811 |
| 30 | 35 years | $210,000 | $830,421 | $620,421 |
| 35 | 30 years | $180,000 | $567,452 | $387,452 |
| 40 | 25 years | $150,000 | $380,613 | $230,613 |
| 45 | 20 years | $120,000 | $248,033 | $128,033 |
| 50 | 15 years | $90,000 | $153,720 | $63,720 |
| 55 | 10 years | $60,000 | $86,543 | $26,543 |
How We Calculate This
This retirement savings calculator uses established formulas and industry-standard data to provide accurate estimates.
- Enter your specific values into the calculator fields above
- Our algorithm applies the relevant formulas using your inputs
- Results are calculated instantly in your browser — nothing is sent to a server
- Review the detailed breakdown to understand how each factor affects your result
These calculations are estimates based on standard formulas. For critical decisions, always consult a qualified professional.
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This retirement savings calculator projects how your savings will grow using compound interest, accounting for your current balance, regular contributions, employer match, and expected investment returns.
The basic rule:
- Calculates compound growth on your existing savings at the expected annual return rate
- Adds monthly contributions (yours + employer match) throughout the savings period
- Each contribution earns compound returns from the date it's made until retirement
- Uses the 4% rule to estimate sustainable monthly retirement income from the final balance
The projection assumes a constant rate of return, which won't happen in reality — actual returns will vary year to year. However, long-term averages provide a reasonable planning estimate. The S&P 500 has averaged about 10% nominal (7% after inflation) over long periods.
When Would You Use This Calculator?
This retirement savings calculator is designed for anyone who needs quick, reliable estimates without complex spreadsheets or professional consultations.
- When you need a quick estimate before committing to a purchase or project
- When comparing different options or scenarios side by side
- When planning a budget and need to understand potential costs
- When you want to verify a quote or estimate you've received from a professional
- When teaching or learning about the concepts behind these calculations
Frequently Asked Questions
How much should I save for retirement?
A common rule of thumb is to save 15% of your gross income (including employer match). Fidelity suggests having 1× your salary saved by 30, 3× by 40, 6× by 50, 8× by 60, and 10× by 67. The exact amount depends on your desired retirement lifestyle.
What rate of return should I assume?
For a diversified stock/bond portfolio, 6-8% is a reasonable long-term assumption before inflation (or 4-5% after inflation). Use 7% for a moderate stock-heavy portfolio, 5-6% for a balanced portfolio, or 8-10% for an aggressive all-stock portfolio.
Should I include employer match in my calculations?
Absolutely. An employer match is free money. If your employer matches 50% up to 6% of your salary, that's an additional 3% of your salary contributed each year. Always contribute at least enough to get the full employer match.
What is the 4% rule for retirement income?
The 4% rule says you can withdraw 4% of your portfolio in the first year of retirement, then adjust for inflation each year. A $1 million portfolio would provide about $40,000/year or $3,333/month in retirement income with a high probability of lasting 30 years.
How does starting age affect retirement savings?
Starting early is incredibly powerful due to compound interest. Someone who saves $500/month starting at 25 will have about $1.2M at 65 (at 7% return). Starting at 35 with the same amount yields about $567K — less than half — despite only missing 10 years.
Should I use pre-tax or post-tax return?
For tax-advantaged accounts (401k, IRA), use the pre-tax return since growth is tax-deferred. For Roth accounts, the growth is tax-free. For taxable accounts, reduce the return by your expected tax rate on gains and dividends.