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CD maturity planner

Free CD Calculator

A CD calculator estimates how much a certificate of deposit can be worth at maturity. Enter your deposit, rate, term, and compounding schedule to see interest earned, APY, and the potential impact of an early withdrawal penalty.

Maturity value

$26,742.38

Interest earned

$1,742.38

APY

4.59%

CD offer

The deposit, term, and stated bank rate you want to compare.

Compounding and penalty

Model how interest is credited and what happens if you exit early.

CD results

Maturity estimate

Opening deposit

$25,000.00

Effective APY

4.59%

Penalty amount

$435.60

After penalty

$26,306.79

MonthBalanceInterest
6$25,567.80$567.80
12$26,148.50$1,148.50
18$26,742.38$1,742.38

Common questions

What is a CD calculator?

A CD calculator estimates how much a certificate of deposit could be worth at maturity based on the deposit amount, interest rate, term, and compounding schedule.

How is CD interest calculated?

Most CDs compound interest on a set schedule. This calculator applies the stated annual rate to the compounding frequency, then projects growth through the full CD term.

What is APY on a certificate of deposit?

APY is the effective annual yield after compounding. It is often higher than the stated interest rate when interest compounds more than once per year.

Does an early withdrawal penalty reduce CD interest?

Yes. Banks often charge a penalty based on interest earned or a set number of months of interest. This calculator lets you model a percentage-based penalty impact.