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?

Use our compound interest calculator to see how your savings or investments might grow over time using the power of compound interest

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

See How Finance Works for the compound interest formula, (or the advanced formula with annual additions), as well as a calculator for periodic and continuous compounding.

Compounding interest calculator: Use this calculator to determine how much your money can grow with compound interest.

Free compound interest calculator with interactive charts. Calculate investment growth, savings projections, and retirement planning. See how compound interest works with regular contributions. …

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

Simple compound interest calculator. Calculate compound interest savings for savings, loans, and mortgages without having to create a formula.

Use our Compound Amount Calculator to determine the future value of your investments, total interest earned, and explore different compounding scenarios.

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