How is compound interest calculated?

Compound interest is calculated on the initial principal and also on the accumulated interest of previous periods. The formula is A = P(1 + r/n)^(nt), where P is principal, r is annual rate, n is compounds per year, and t is time in years.

Is my financial data saved?

No! All calculations are performed directly in your browser. We do not collect, store, or transmit any of your financial inputs or results.

What is a good annual return on investment?

Historically, the S&P 500 has returned about 7-10% annually after inflation. A good ROI depends on your risk tolerance, but 5-8% is often considered a solid benchmark for long-term investing.

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