Final Balance
$0
Total Value
Total Interest
$0
Earned from compounding
Balance Over Time
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What is the Compound Interest Calculator?
Compound interest is the process where the interest you earn on your initial investment begins to earn interest on itself. Albert Einstein reportedly called it the “eighth wonder of the world.” Over long periods, compounding causes your wealth to grow exponentially, doing the heavy lifting of wealth creation for you.
How to Use This Tool
- Initial Investment: Your starting principal.
- Monthly Contribution: Consistent, automated investments are the key to building wealth.
- Interest Rate & Compounding Frequency: The higher the rate and the more frequent the compounding (e.g., monthly vs annually), the faster your money grows.
Frequently Asked Questions
What is a realistic interest rate?
A high-interest savings account might yield 3-5%, while a diversified stock market portfolio has historically returned 7-10% annually over long decades (though with significant short-term volatility).
Does compounding happen in the stock market?
Yes, through two mechanisms: capital appreciation (the value of companies growing) and dividend reinvestment (using cash payouts to buy more shares, which then pay their own dividends).