Smart Investing & Retirement Planning

Investment Calculator

Estimate the future value of your investments with compound interest. See how initial deposits and monthly contributions grow over time.

📈 Investment Parameters

$

One‑time lump sum you start with

$

Added at the end of each month

Average market return (e.g., 8% for stocks)

How long you let your money compound

Estimated Future Value

$0.00

Total Interest Earned

$0.00

Interest / Total Ratio

0%

Total Invested

$0.00

💡 Insight: At 8% return, your money doubles approximately every 9 years (Rule of 72).
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📚 Understanding Compound Interest

Compound interest is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods. Read more on Wikipedia →

The formula used: FV = P(1+r)ⁿ + PMT × ((1+r)ⁿ – 1)/r, where r = monthly rate, n = total months.

📖 For deeper financial literacy, visit Investopedia's compound interest guide.

🧠 Smart Investing Tips

  • Start early – time is your biggest ally due to compounding.
  • Be consistent – regular monthly contributions beat trying to time the market.
  • Understand risk – higher returns usually come with higher volatility.
  • Diversify – spread investments across asset classes.

📊 Learn about the Rule of 72 – how long it takes to double your money.