Compound Interest Calculator
Calculate how your investments grow over time with compound interest. See the power of compounding on your savings.
How it works
Compound interest is calculated using the formula A = P(1 + r/n)^(nt), where A is the future value, P is the principal amount, r is the annual interest rate, n is the number of times interest is compounded per year, and t is the time in years. This calculator shows you how your initial investment grows over time with compound interest.
Example
If you invest $10,000 at 7% annual interest compounded monthly for 10 years, your investment will grow to $20,096.61. That's $10,096.61 in interest earned just from letting your money compound over time.
Frequently asked questions
What is compound interest?
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. It's essentially 'interest on interest' and can significantly increase your investment returns over time.
How often should interest compound?
The more frequently interest compounds, the more you'll earn. Daily compounding will yield slightly more than monthly, which yields more than quarterly or annual compounding. However, the difference is usually small for typical interest rates.
What's the difference between simple and compound interest?
Simple interest is calculated only on the principal amount, while compound interest is calculated on the principal plus any accumulated interest. Compound interest grows faster over time.
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