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

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 …

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

Use the interest calculator to calculate how much interest your savings account can earn. The higher your interest rate, or yield, the more your bank balance grows. You can enter a …

This Interest Calculator Web Application helps users compute Simple Interest (SI) and Compound Interest (CI) while also factoring in inflation to understand the real value of their investments.

Use our Interest Calculator to determine interest on loans, savings, or investments. Input principal, interest rate, and time to get accurate results for simple or compound interest.

Calculate interest rates effortlessly with this Interest Rate Calculator. Input principal amount, interest rate, time, and compound frequency for accurate results. Optimize your financial …

Free Interest Calculator helps you to compute interest on loans, savings accounts, investments. Change compound frequencies. Determine maturity dates.

Use our compound interest calculator to see how your savings can grow over time. Calculate returns with different contribution amounts, interest rates, and compounding frequencies.