Interest Rate Calculator

Calculate effective interest rate based on principal, final amount, and time period.

About This Calculator

This calculator determines the effective interest rate based on your initial investment, final amount, and time period. It shows both simple and compound interest rates to help you understand the return on your investment.

Principal Amount (USD)

Final Amount (USD)

Time Period (years)

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Disclaimer: This calculator provides estimates. Actual rates may vary based on compounding frequency and other factors.