Compound Interest Calculator
Calculate compound interest and see how your money grows over time. Compare different compounding frequencies.
Frequently Asked Questions
What is compound interest?
Compound interest is interest calculated on the initial principal and accumulated interest from previous periods. It's often called "interest on interest".
How often should interest compound?
More frequent compounding results in higher returns. Daily compounding yields slightly more than monthly, which yields more than annually.
What is the Rule of 72?
The Rule of 72 is a quick way to estimate how long it takes to double your money. Divide 72 by your interest rate to get the approximate years needed.