Future Value Calculator
Calculate the future value of an investment with an initial deposit, periodic contributions, and compound interest. See year-by-year growth, total interest earned, and inflation-adjusted purchasing power. Free, no sign-up required.
The lump sum you invest today. Enter 0 if you're starting from scratch with only periodic deposits.
The amount you contribute at each deposit interval. Enter 0 for a one-time lump sum investment.
Expected annual return. S&P 500 historical average is ~10%; use 6-8% for a conservative estimate.
How long your investment grows. Longer periods benefit more from compound interest.
Enter an inflation rate to see the inflation-adjusted (real) future value. US average is ~3% per year.
📈 Future Value
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Total Contributions
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Interest Earned
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Total Periods
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Effective Rate
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Interest %
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📊 Year-by-Year Growth
| Year | Deposits | Interest | Balance |
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Deposits column shows cumulative contributions. Interest column shows cumulative interest earned. Balance is the total future value at end of each year.
💡 What this means
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📚 Grow your investing knowledge
📚 See top-rated investing books on Amazon →📝 How to use this future value calculator
- Enter Initial Deposit — the lump sum you're investing today. Enter 0 if you're building wealth through periodic deposits only.
- Enter Periodic Deposit — how much you'll contribute at each interval (e.g., $200/month). Enter 0 for a one-time investment.
- Choose Deposit Frequency — how often you make contributions: monthly, bi-weekly, quarterly, etc.
- Choose Deposit Timing — beginning of period (annuity due, slightly higher FV) or end of period (ordinary annuity). Most systematic investment plans use beginning-of-period.
- Enter Annual Interest Rate — your expected annual return. Use 6-8% for conservative stock market estimates, 10% for the historical S&P 500 average.
- Choose Compounding Frequency — how often interest is applied. Monthly is standard for savings and investment accounts.
- Enter Investment Period — how many years the investment grows. Longer periods dramatically increase the compounding effect.
- Optional: Enter Inflation Rate — to see the inflation-adjusted (real) future value alongside the nominal value.
- Click Calculate — see total future value, contributions, interest earned, and a year-by-year growth table.
📌 5 tips for maximizing future value
- ✓ Start early, even with small amounts. Time is the most powerful factor in compound growth. $200/month at 7% for 30 years yields $244,000; for 40 years it yields $528,000. The extra 10 years more than doubles the result.
- ✓ Increase contributions over time. As your income grows, raise your periodic deposit. Even a 3% annual increase in contributions can boost your future value by 15-20% over 20 years.
- ✓ Choose beginning-of-period deposits. Contributing at the start of each period gives every deposit one extra compounding cycle. Over 20+ years, this adds up to thousands of dollars in additional interest.
- ✓ Watch the inflation-adjusted value. A $200,000 future value sounds great, but at 3% inflation over 20 years, that's only $111,000 in today's purchasing power. Always plan using real (inflation-adjusted) returns.
- ✓ Minimize investment fees. A 1% annual fee reduces your future value by 20%+ over 20 years. Use low-cost index funds and ETFs to keep more of your returns compounding for you.
Disclaimer: This calculator provides estimates for educational purposes only. It assumes constant growth rates and regular contributions, which do not reflect real-world market volatility. Investment returns are not guaranteed and principal can decline. Past performance does not guarantee future results. Consult a financial advisor for professional investment guidance tailored to your situation.
Related Tools
Future value is the foundation of investment planning. These six calculators cover the rest of your toolkit — from compound interest and CAGR to ROI, dividend reinvestment, investment fees, and inflation-adjusted returns.
- Compound Interest Calculator — project how any investment grows with compounding at a known rate, the core concept behind future value calculations.
- CAGR Calculator — calculate the compound annual growth rate of any investment, the natural companion to future value for measuring annualized returns.
- ROI Calculator — measure the total return on investment for any project or capital allocation, comparing gains to the original amount invested.
- Dividend Reinvestment Calculator — see how reinvesting dividends (DRIP) compounds your portfolio's future value over time with year-by-year projections.
- Investment Fee Calculator — see how management fees erode your future value over time. Even a 1% fee can reduce long-term growth by 20%+.
- Inflation Calculator — adjust any dollar amount for inflation to see how purchasing power changes over time, the real-value complement to future value.