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

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 …

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?

With the compound interest calculator, you can accurately predict how profitable certain investments will be for your portfolio.

Select Want to calculate either Present Value, Interest Rate, Number of Periods or Future Value from the other three. Learn more at Compound Interest.

Compound interest calculator with step by step explanations. Calculate Principal, Interest Rate, Time or Interest.

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

Calculate how your investments will grow with our free compound interest calculator. Plan for retirement, analyze savings growth, and visualize investment outcomes with different …

The calculator automatically computes whichever value you least recently updated: present value, future value, or payment amount. All interest rates shown are annual rates. Interest is …

Simple online browser based javascript compound interest calculator. Easy to use on mobile as well.