Compound Interest Calculator
Project the exponential growth of savings and investments over time with flexible compounding frequencies.
How to Use the Compound Interest Calculator
Enter the required values in the fields above and click Calculate. All calculations are executed directly inside your web browser using proven mathematical formulas, ensuring instantaneous results and 100% privacy without transmitting your numbers to remote servers.
Mathematical Formula
Worked Example
$5,000 invested at 7% annual interest compounded monthly for 10 years grows to $10,048.31, earning $5,048.31 in compound interest.
Important Notes & Limitations
Assumes a constant interest rate throughout the investment duration without tax deductions or inflation adjustments.
Want an in-depth walkthrough? Read our full guide on How Does Compound Interest Work? → with complete step-by-step examples and formula breakdowns.
This calculator provides estimates based on standard mathematical algorithms (such as compound interest formulas and standard amortization schedules) for budgeting, educational, and analytical scenarios. Actual loan terms, investment yields, taxes, and interest rates vary by financial institution, jurisdiction, and credit profile. This does not constitute certified investment, tax, legal, or financial advice. Consult a licensed financial advisor, CFP®, or CPA before making financial commitments.
Frequently Asked Questions
Simple interest is calculated solely on the principal deposit. Compound interest calculates interest on both the initial principal and accumulated interest.