1-year CD interest calculator
Calculate interest earned on a 1-year Certificate of Deposit (CD) with compound APY. Free savings calculator with no sign-up.
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FDIC and NCUA insured CDs guarantee your principal deposit and fixed return up to $250,000 per depositor. Early withdrawal penalties apply if cashed before maturity.
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About this tool
Calculate how much interest you will earn on a 12-month Certificate of Deposit (CD) based on bank APY and compounding frequency.
How to use it
- 1 Pick a CD term preset (6 months, 1 year, 2 years, etc.) or type custom months.
- 2 Enter your principal deposit amount in dollars ($).
- 3 Enter the bank APY % to see total interest earned and final balance at maturity.
Questions
How much does a $10,000 CD make in a year at 5% APY?
A $10,000 deposit in a 1-year CD paying 5.0% APY earns exactly $500 in interest at maturity, resulting in a total balance of $10,500.
What is the difference between APR and APY on a CD?
APR is the simple annual interest rate without compounding, whereas APY (Annual Percentage Yield) reflects the true annual return including compound interest.
Are CDs safe in the United States?
Yes. CDs from FDIC-insured banks or NCUA-insured credit unions are backed by the US federal government up to $250,000 per depositor, per institution.
Is my data uploaded?
No. This tool runs in your browser, so your text and files never reach our server.
Is this tool free?
Yes. It’s free to use with no sign-up and no limits for normal use.
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