Aug 1, 2025 · Calculate compound interest on an investment, 401K or savings account with annual, quarterly, daily or continuous compounding. The calculator computes compound …

Test your knowledge of compound interest, the Rule of 72, and related investing concepts in our most popular investing quiz! There’s a trick question – can you spot it?

If you'd prefer not to do the math manually, you can use the compound interest calculator at the top of our page. Simply enter your principal amount, interest rate, compounding frequency and …

Free compound interest calculator to find the interest, final balance, and schedule using either a fixed initial investment and/or periodic contributions.

Jan 7, 2026 · Calculate compound interest growth instantly. Visualize daily, monthly, or yearly compounding with regular contributions. Plan your financial future.

Apr 27, 2025 · Calculate the future value of your investment with compound interest. Use this tool to see how your principal grows over time with regular contributions, different compounding …

Free compound interest calculator with monthly contributions, inflation and tax adjustments, interactive chart, and yearly breakdown. Fast, mobile-friendly, and multi-language.

Dec 22, 2025 · Compound interest is calculated by multiplying the initial principal amount by one plus the annual interest rate raised to the number of compound periods minus one. The total …

Discover the power of compound interest with our calculator. Estimate your investment growth over time and learn how it works.

With Compound Interest, we work out the interest for the first period, add it to the total, and then calculate the interest for the next period, and so on ..., like this: