CD Calculator
FREE
Calculate certificate of deposit maturity value & interest earnings
What Is a Certificate of Deposit (CD)?
A Certificate of Deposit (CD) is a savings product offered by banks and credit unions that pays a fixed interest rate for a set period of time. You agree to leave your money untouched until the maturity date, and in return you earn a guaranteed return – usually higher than a regular savings account.
How to Use This CD Calculator
Our free CD calculator above makes it easy to estimate your earnings:
- Initial Deposit: Enter the amount you plan to invest.
- Annual Interest Rate: Input the APY or nominal rate offered by the bank.
- Term: Choose the length of the CD in months or years.
- Compounding: Select how often interest is compounded (daily, monthly, quarterly, or annually).
Hit Calculate and instantly see your total balance at maturity, interest profit, and the effective annual yield.
How Is CD Interest Calculated?
The calculator uses the standard compound interest formula:
A = P (1 + r/n)(n*t)
- A = final amount
- P = principal (initial deposit)
- r = annual interest rate (decimal)
- n = number of compounding periods per year
- t = time in years
The effective annual yield (EAY) shows the real return after compounding: (1 + r/n)n - 1.
Benefits of Using a CD
- Guaranteed returns: FDIC or NCUA insured up to $250,000.
- Higher rates: Often better than regular savings accounts.
- Predictable growth: No market volatility.
- Flexible terms: From a few months to several years.
🔹 Does the CD calculator account for early withdrawal penalties?
No, this tool shows gross maturity value. If you withdraw early, you may lose some interest. Always check the bank's penalty policy.
🔹 What’s the difference between APY and interest rate?
APY (Annual Percentage Yield) already includes compound interest. The nominal rate is the base rate before compounding. Our calculator uses the nominal annual rate; the effective yield result will match the APY if compounding is accounted for.
Start using the CD calculator above to plan your savings goals — no sign‑up required, completely free.
