Compound Interest Calculator

Discover the power of compound interest with regular contributions. See how your money grows over time!

Investment Parameters
Enter your investment details to see compound growth projections

Starting amount you're investing

Amount you'll add each month

Expected annual return rate

How long you'll invest

How often interest compounds: 12 times per year

The Power of Compound Interest

Compound interest is "interest on interest" - you earn returns not just on your original investment, but also on all the interest you've previously earned.

Key Benefits:

  • • Exponential growth over time
  • • More powerful with longer time periods
  • • Regular contributions amplify the effect
  • • Higher compounding frequency = more growth
Maximizing Compound Growth
  • Start early: Time is your most powerful ally in compound growth
  • Contribute regularly: Consistent monthly investments boost returns
  • Reinvest dividends: Let all earnings compound for maximum growth
  • Stay invested: Avoid withdrawing to maintain compound momentum
  • Use tax-advantaged accounts: 401(k)s and IRAs protect compound growth