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financial / Free Online Tool
Interest Rate Calculator.
Find the effective interest rate of a loan or investment based on payment structures.
Input Parameters
Computed Results
Primary Metric
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Comments & Feedback.
Frequently asked questions.
What is the difference between APR and effective interest rate?
APR (Annual Percentage Rate) is the simple annual rate, while the effective interest rate accounts for compounding. The effective rate is always equal to or higher than the APR.
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