CD Calculator

Get the Best CD Rates

We’ve helped thousands of institutional and individual investors invest over $12.99 billion in CDs.

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Welcome to our CD Calculators. First we have our Interest Earned CD Calculator. Just input your Principal, Rate, Compounding, and Term and the CD Calculator will do the rest.

The CD Calculator calculates the APY, approximate monthly interest, simple annual interest, annual interest earned (based on compounding method), total interest earned for the term and total yield at maturity.

CD Calculator

Principal:Compouding:
APR:% APY:%
Term (in years):
Approx monthly Interest:
Simple Annual Interest:
Annual Interest Earned:
Compounded Interest:
Total Yield at Maturity:
Version:

Notes for odd terms


If you have an odd term maturity such as 9-months or 18-months you can enter the term as a decimal like 0.75 or 1.50. If you need the calculator to be precise to a given number of days, first divide you term (in days) by 365 and then enter that value. For instance if you have a 603-day term you would enter 1.6521.

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Click here for our Half-Term Analysis Calculator.