Estimate the maturity value and total interest on a certificate of deposit.
Interest is shown before taxes and assumes the CD is held to maturity. Estimates only — not financial advice. Verify with your lender/advisor.
A CD calculator projects how much a certificate of deposit will be worth at maturity, and how much interest you earn, based on your deposit, the APY, the term length, and how often interest compounds.
Maturity value = P x (1 + (APY/100)/n)^(n x years), where P is the deposit, APY is the annual percentage yield, n is the number of compounding periods per year, and years is the term. For example, $10,000 at 5% APY compounded annually for 5 years grows to about $12,763. Estimates only, not financial advice.
Interest earned is the maturity value minus your original deposit. On a $10,000 CD at 5% APY for 5 years, the maturity value is about $12,763, so you earn roughly $2,763 in interest before taxes.
When a bank quotes APY, it already reflects compounding, so the headline yield is comparable across banks. Choosing daily, monthly, or annual compounding in this tool shows how the same nominal rate accrues differently, with more frequent compounding earning slightly more.