Calculate how your investments grow over time with compounding interest and regular contributions.
Detailed annual compound breakdowns outlining contributions, compound returns, and final balances.
| Year | Invested Principal | Compound Returns | Total Balance |
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Advanced compounding growth modeler
Compound interest is the interest calculated on the initial principal, which also includes all of the accumulated interest of previous periods on a deposit or loan. It is often described as "interest on interest."
Compounding frequency refers to how often interest is calculated and added to the principal balance. It can occur annually, semi-annually, quarterly, monthly, weekly, or even daily. More frequent compounding leads to higher overall returns.
Simple interest is calculated only on the principal amount of a loan or deposit. Compound interest is calculated on both the principal and the accumulated interest from previous periods, leading to exponential growth over time.
The Rule of 72 is a quick, useful formula to estimate the number of years required to double your investment at a fixed annual rate of return. Simply divide 72 by your annual interest rate (e.g., at 6% return, it takes about 12 years to double).