About the CD Calculator
A certificate of deposit locks in a fixed rate for a set term, guaranteeing the return in exchange for tying up your money. This calculator shows the value at maturity and the interest earned.
How it’s calculated
Maturity value = deposit × (1 + APY ÷ m)^(m × years), where m is the number of compounding periods per year. Interest earned = maturity value − deposit.
Example calculation
A $10,000 deposit in a 12-month CD at a 4.5% APY grows to about $10,459 at maturity.
Frequently asked questions
What happens if I withdraw early?
Most CDs charge an early-withdrawal penalty, often several months of interest, so only commit money you won't need before the term ends.
Is a longer CD always better?
Not necessarily — longer terms sometimes pay more, but they tie up your money and you may miss out if rates rise. Compare terms and consider a CD ladder.
This calculator provides estimates for educational purposes and should not be considered financial, tax, or legal advice. Your actual figures may vary with lender terms, fees, and market conditions.