Compound Interest Calculator
Calculate compound growth, recurring investments and inflation-adjusted real return
投資參數
計算結果
投資成長趨勢
每 5 年資產快照明細 ▾
| 年份 | 資產金額 | 實質購買力 | 報酬率 |
|---|
About the Compound Interest Calculator
What is compound interest?
Compound interest means your returns earn additional returns over time. This calculator combines initial principal, monthly contributions, annual return and inflation to estimate nominal growth and real purchasing power.
How to Use
- Enter starting principal.
- Add monthly contributions if you invest regularly.
- Set expected annual return, investment years and inflation.
- Compare final value, total contributions, total return and real value after inflation.
Frequently Asked Questions
What is the difference between compound and simple interest?
Simple interest earns return only on the original principal. Compound interest reinvests returns, so future gains are calculated on both principal and accumulated gains.
Why include inflation?
Inflation reduces purchasing power. Real return helps estimate what the future amount may be worth in today's money.
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For planning only. It does not include taxes, fees or market volatility.
