Effective Interest Rate Calculator

About Effective Interest Rate Calculator

Convert nominal interest into an effective annual rate so rates with different compounding frequencies are easier to compare.

How to Use

Convert nominal interest into an effective annual rate so rates with different compounding frequencies are easier to compare. Enter the Nominal rate and Compounding periods values and review the Effective annual rate and Periodic rate outputs after you calculate.

  1. Open the calculator : Use Effective Interest Rate Calculator from the Finance category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What formula does the Effective Interest Rate Calculator use?

EAR = (1 + nominal rate / periods)^periods - 1.

Inputs

  • Nominal rate
  • Compounding periods

Outputs

  • Effective annual rate
  • Periodic rate

Formula

EAR = (1 + nominal rate / periods)^periods - 1.