Equivalent Rate Calculator

Nominal Annual Rate?:
Effective Annual Rate?:
Compounding Period?:
Days In Year?:
Enter either effective or nominal rate.
'0' (zero) for unknown value.

Daily Rate
At Selected Compounding:
Periodic Rate...
At Selected Compounding:
Effective Rate at...
Annual Compounding:
Semiannual Compounding:
Monthly Compounding:
Daily Compounding:
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The nominal rate of interest is the quoted rate. The effective rate accounts for the impact of compounding. An investment could be quoted at 5.5% compounded semi-annually and another investment can be quoted at 5.5% compounded daily. The amount returned will certainly be different, though the quoted rate is the same.

When comparing rates, take the nominal rate and convert it to an effective rate. Enter the nominal rate and 0 for the effective rate. 5.5% compounded semi-annually results in an effective rate of 5.5756%. 5.5% compounded daily results in an effective rate of 5.6536% (assuming a 360 day year).

Given an effective rate, calculate the nominal rate by entering 0 for nominal rate.

The calculator calculates effect rates for several compounding frequencies at one time.


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This calculator will calculate equivalent interest rates for various compounding frequencies. Please click on the above "Help" button for details.

Do you want to calculate either the compound interest or simple interest between any two dates on any amount at any interest rate? Then use our online compound interest or our simple interest calculators.

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Do you need to do more advanced financial analysis? If so, we publish over 40 flexible financial calculators and schedules for Windows.
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