Compound Interest Calculator
Calculate compound interest with detailed breakdown
How to Use Compound Interest Calculator
- 1Enter the principal amount (initial investment).
- 2Enter the annual interest rate.
- 3Select the compounding frequency.
- 4Enter the time period in years.
- 5View the final amount, total interest and year-by-year breakdown.
About Compound Interest Calculator
Calculate compound interest with different compounding frequencies: annually, semi-annually, quarterly, monthly, or daily. See the final amount, total interest earned, and a year-by-year growth breakdown. Uses the formula A = P(1 + r/n)^(nt). Essential for investment planning and savings goals.
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 grows exponentially, unlike simple interest which only applies to the principal.
How does compounding frequency affect returns?
More frequent compounding results in slightly higher returns. Monthly compounding earns more than annual compounding for the same rate, because interest starts earning interest sooner.
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 the annual interest rate. At 8% interest, your money doubles in approximately 72/8 = 9 years.