QuickFreeTools

Online Effective Interest Rate Calculation

Convert nominal annual rate to effective annual rate using (1 + r/n)^n - 1 with compounding periods per year.

Frequently Asked Questions

What is the effective annual rate?
The effective annual rate (EAR) is the actual rate after compounding. EAR = (1 + nominal/n)^n - 1, where n is compounding periods per year.
When does EAR equal the nominal rate?
When interest compounds once per year (n = 1), EAR equals the nominal rate.
Why use effective rate?
It lets you compare loans or investments with different compounding frequencies on an equal basis.

Related Calculators