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Investment Calculator

Project your investment growth over time. Calculate potential returns with regular contributions, interest rates, and compounding.

Investment Return Calculator

Project how your investments will grow over time with annual contributions and compound returns.

$
%
ConservativeAggressive
20 years
$
Monthly equivalent: $416.67

Future Value

$363,638.54

Total Return$238,638.54
Total Contributions$125,000.00
Initial Investment$25,000.00
Total Contributions$125,000.00
Total Return$238,638.54
Return on Investment190.9%
Future Value$363,638.54
Contributions (34.4%)Returns (65.6%)

How to Use This Investment Calculator

Enter your initial investment amount, expected annual return rate, investment time horizon, and any annual contributions you plan to make. The calculator projects your portfolio's future value and shows you a year-by-year breakdown of how your wealth accumulates over time through contributions and compound returns.

Historical Average Returns

The S&P 500 has historically returned about 10% per year before inflation (roughly 7% after inflation). Bond markets have averaged around 5-6% annually. A balanced portfolio of stocks and bonds typically targets 7-8% annual returns. Remember that past performance does not guarantee future results, and actual returns will vary year to year.

Tips for Long-Term Investing

  • Start investing as early as possible to maximize compound growth
  • Diversify across asset classes, sectors, and geographies
  • Keep costs low with index funds and ETFs
  • Stay the course during market downturns — avoid panic selling
  • Increase your annual contributions as your income grows
  • Take advantage of tax-advantaged accounts (401k, IRA, Roth IRA)
100% FreeNo Sign-up RequiredPrivacy-First (Client-Side)400+ Tools Available

How to Use

  1. 1Enter your initial investment amount and expected annual return rate.
  2. 2Add any regular monthly or annual contributions you plan to make.
  3. 3View projected growth, total returns, and a breakdown of contributions vs. earnings.

Frequently Asked Questions

What is ROI (Return on Investment)?
ROI measures the profitability of an investment as a percentage. It is calculated as (Net Profit / Cost of Investment) x 100. A positive ROI means the investment gained value.
What is a realistic annual return rate?
Historically, the stock market has averaged about 7-10% annual returns before inflation. Bonds typically return 3-5%, while savings accounts offer 1-5%. Past performance does not guarantee future results.
How do regular contributions affect investment growth?
Regular contributions significantly accelerate growth through dollar-cost averaging. Even small monthly additions compound over time and can dramatically increase your final portfolio value.
What is the difference between nominal and real returns?
Nominal returns are the raw percentage gain on your investment. Real returns subtract inflation, showing your actual purchasing power increase. Real returns are more meaningful for long-term planning.
How does investment time horizon affect returns?
Longer time horizons allow more compounding, which exponentially increases returns. They also help smooth out short-term market volatility, reducing overall investment risk.

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