Investment Growth Calculator
Project the growth of your investments over time with compound interest. See how your portfolio could grow with regular contributions.
计算示例
Understanding how investments grow over time is fundamental to building wealth. This calculator shows the power of compound returns on your investment portfolio, helping you set realistic expectations and goals.
提示
- 1Diversify your investments across asset classes to manage risk.
- 2Reinvest dividends to accelerate compound growth.
- 3Keep investment fees low — even 1% in fees can reduce your returns by 25% over 30 years.
- 4Stay invested during market downturns — historically, markets recover and grow.
- 5Dollar-cost averaging (investing a fixed amount regularly) reduces the impact of market volatility.
常见问题
What is compound interest?
Compound interest is when you earn interest on both your original investment and on the interest you have already earned. This creates exponential growth over time, often called the 'eighth wonder of the world'.
How does compounding frequency affect returns?
More frequent compounding (monthly vs. annually) results in slightly higher returns. Monthly compounding at 8% yields about 8.3% effective annual return.
What is a realistic long-term investment return?
The S&P 500 has historically returned about 10% annually before inflation (7% after inflation). Individual returns vary based on asset allocation and market conditions.
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