Free Compound Interest Calculator

Calculate your savings growth over time with our powerful compound interest calculator. Project future values, compare scenarios, and make informed financial decisions for your personal finance planning.

Compound Interest Calculator
Enter your investment details to see how compound interest can grow your savings
Future Value
$270.70
Total Contributions
$100.00
Total Interest
$170.70
Growth Over Time
See how your investment grows year by year
Understanding Compound Interest

Compound interest is the interest calculated on the initial principal and the accumulated interest from previous periods. It's often called "interest on interest" and is a powerful tool for growing your savings over time.

How It Works

The compound interest formula is: A = P(1 + r/n)^(nt)

  • A = Final amount
  • P = Principal (initial amount)
  • r = Annual interest rate (as decimal)
  • n = Compounding frequency per year
  • t = Time in years

Tips for Maximizing Growth

  • Start investing early to take advantage of time
  • Choose accounts with higher compounding frequencies
  • Reinvest your interest rather than withdrawing it
  • Consider making regular contributions to boost growth

⚠️ Important Disclaimer

This calculator is provided for educational and informational purposes only. The results are estimates based on the inputs provided and should not be considered as financial advice or guaranteed outcomes. We are not responsible for any financial decisions made based on the output of this calculator. Please consult with a qualified financial advisor before making any investment decisions.