CD Interest on $20,000 at 5.5% for 18 Months

A $20,000 CD at 5.5% APY for 18 months earns approximately $1,670 in interest.

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How to use this tool

Enter deposit amount, annual rate (apy), cd term and compounding in the fields above.
Results update instantly as you type — or click Calculate.
Read your interest earned and the full breakdown beneath it.

Calculate the total interest on a $20,000 CD at 5.5% APY over an 18-month term with monthly compounding.

Frequently asked questions

What is a CD?: A Certificate of Deposit (CD) is a savings product offered by banks and credit unions that pays a fixed interest rate for a fixed period. Early withdrawal typically incurs a penalty.
How is CD interest calculated?: CD interest compounds based on the stated frequency (monthly, quarterly, etc.). The effective APY shows your true annual return accounting for compounding.