📈 Compound Interest Calculator – Grow Your Investments
Understanding how your investments grow over time is essential for financial planning. Our Compound Interest Calculator helps you estimate the future value of your savings or investments, factoring in monthly contributions and interest compounding. With this tool, you can plan smarter, save more effectively, and visualize your financial growth.
What is Compound Interest?
Compound interest is the interest earned on both the principal and the accumulated interest from previous periods. It allows your money to grow faster over time compared to simple interest. Compound interest is commonly applied to:
- Savings accounts
- Retirement accounts
- Investment portfolios
- Educational savings plans
Using this calculator, you can see how monthly contributions and compounding frequency impact your final balance.
How to Use the Compound Interest Calculator
- Enter the Starting Amount – the initial investment or savings.
- Enter the Monthly Contribution – the amount you plan to add each month.
- Enter the Interest Rate (%) – the annual rate of return.
- Enter the Number of Years – how long the money will grow.
- Click Calculate – instantly see your future value.
The calculator provides a clear estimate of your investment growth, helping you make informed decisions.
Understanding the Numbers
- Future Value: The total amount accumulated, including principal, contributions, and interest.
- Interest Earned: The total interest gained over the investment period.
- Monthly Contributions: The extra money added each month that accelerates growth.
Example:
- Starting Amount = $10,000
- Monthly Contribution = $100
- Interest Rate = 5%
- Years = 10
→ Future Value ≈ $27,500
Changing any input (rate, time, or contribution) updates the result immediately, allowing you to plan different scenarios.
Why Use an Online Compound Interest Calculator?
- Quick and accurate: No need for manual calculations.
- Plan long-term goals: See how consistent saving affects growth.
- Compare scenarios: Explore the impact of higher contributions or interest rates.
- Free and accessible: Use on any device without registration.
Compound interest is the interest earned on both the principal and the accumulated interest over time, helping your money grow faster than simple interest.
Enter your starting amount, monthly contribution, annual interest rate, and number of years, then click Calculate to see the future value of your investment.
It accelerates the growth of your savings or investments, making it easier to reach financial goals like retirement, buying a house, or education funds.
Yes, it is fully responsive and works perfectly on smartphones, tablets, and desktops.