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Compound Interest Calculator

Discover the power of compound interest and calculate your investment growth over time

Enter Investment Details

The amount you will start with
Expected annual return rate
Investment duration in years
Additional monthly amount (optional)

Investment Tips

  • Start investing early to benefit from the power of time
  • Regular contributions multiply your wealth growth
  • A small increase in return rate makes a big difference
  • Don't withdraw profits, let them grow

What is Compound Interest?

The Concept

Compound interest is interest calculated on the principal amount and accumulated interest

The Formula

A = P(1 + r/n)^(nt)

Where A is final amount, P is principal, r is interest rate, n is compound frequency, t is time

The Magic Power

Einstein called it the "eighth wonder of the world" for its ability to multiply wealth

Practical Example

Investing $10,000 at 10% annual return for 20 years will grow to $67,275