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CD Calculator

CD Calculator

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This calculator computes how much your Certificate of Deposit (CD) will be worth at maturity and how much interest it will earn, based on your deposit amount, the APY, and the term length.

A CD is a fixed-term deposit that pays a guaranteed interest rate in exchange for locking your money away for a set period, typically offering a higher rate than a standard savings account. Since the APY already reflects the effective annual yield, calculating the maturity value is straightforward.

Savers looking for a safe, predictable return use CDs for money they won't need during the term, since early withdrawal typically triggers a penalty that can eat into or even exceed the interest earned.

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  • Fixed Rate, Fixed Term: Unlike a savings account, the rate and term are locked in when you open the CD.
  • Early Withdrawal Penalties: Taking money out before maturity typically costs several months of interest — CDs are best for money you're sure you won't need.
  • APY Already Accounts for Compounding: Since APY is the effective annual rate, this calculator simply scales it to your actual term length.

What happens if I withdraw money early from a CD?

Most CDs charge an early withdrawal penalty, often equal to a few months of interest — check your specific CD's terms, since penalties vary by term length and institution.

Is a CD better than a regular savings account?

CDs often offer higher rates in exchange for locking up your money, making them a good fit for funds you won't need during the term — a savings account offers more flexibility but often a lower rate.