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CD Calculator

See how much a certificate of deposit will be worth at maturity, and how much interest you'll earn, based on your deposit, APY, and term.

$
At maturity: $0
Interest earned
$0
Your deposit back
$0

APY already includes compounding. CDs at an FDIC-insured bank are protected up to the legal limit.

How the CD calculator works

A certificate of deposit (CD) locks in a fixed APY for a set term in exchange for keeping your money untouched until it matures. This calculator grows your deposit at the APY over the term to show your maturity value and total interest.

Is a CD right for you?

  • Good for money you won't need until a known date and want kept safe.
  • Watch the early-withdrawal penalty — CDs trade flexibility for a fixed rate.
  • Compare the CD's APY against a high-yield savings account, which stays liquid.

See how money grows over time with the Compound Interest Calculator, and compare liquid options in the best high-yield savings accounts and our Banking guides.

Frequently asked questions

How is CD interest calculated?
A certificate of deposit (CD) pays a fixed APY for a set term. Because APY already accounts for compounding, your maturity value is simply your deposit grown at that yield for the length of the term.
Are CDs safe?
CDs opened at an FDIC-insured bank (or NCUA-insured credit union) are protected up to the legal limit, even if the institution fails. The main trade-off is access — your money is locked in for the term.
What happens if I withdraw early?
Most CDs charge an early-withdrawal penalty — often several months of interest — if you take the money out before the term ends. Only deposit money you can leave untouched until maturity.

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