Certificate of Deposit (CD) Calculator
Use our free online CD Calculator to perform fast, accurate calculations with instant formulas, step-by-step arithmetic, and verified reference benchmarks.
CD Calculator
Instant Live Computation • Zero Waiting
Adjust inputs on the left for instantaneous live computation.
How to Calculate: The CD Calculator Formula
Calculates total maturity balance (A) where P is principal deposit, r is nominal annual rate, n is compounding frequency per year, and t is maturity length in years.
Step-by-Step Calculation Guide
- Input your initial deposit amount.
- Enter annual percentage yield (APY) offered by the financial institution.
- Select CD term length in months or years.
- Review guaranteed maturity payout and total interest earned.
Practical CD Calculator Examples
$20,000 deposited in a 12-month CD paying 5.0% APY compounded daily.
$50,000 deposited for 5 years at 4.25% APY compounded monthly.
CD Terms vs Maturity Payout on $25,000 Deposit (at 4.75%
Official reference values and benchmark classifications based on standard institutional guidelines.
| CD Term | Total Interest Earned | Final Maturity Value | Liquidity Window |
|---|---|---|---|
| 6 Months | $594 | $25,594 | Short |
| 12 Months (1 yr) | $1,188 | $26,188 | Medium |
| 24 Months (2 yrs) | $2,433 | $27,433 | Medium-Long |
| 36 Months (3 yrs) | $3,737 | $28,737 | Long |
| 60 Months (5 yrs) | $6,527 | $31,527 | Fixed |
Frequently Asked Questions about CD Calculator
Are CDs FDIC insured?
Yes. CDs held at FDIC-insured banks or NCUA-insured credit unions are federally backed up to $250,000 per depositor, per institution.
What is an early withdrawal penalty on a CD?
Withdrawing principal before the maturity date incurs a penalty, typically equal to 3 to 12 months of interest depending on term length.
What is a CD Ladder strategy?
A CD ladder divides money across staggered maturities (e.g. 1, 2, 3, 4, 5-year CDs), providing ongoing liquidity as each CD matures while capturing long-term yields.
How are CD earnings taxed?
CD interest is taxed as ordinary income at your marginal federal and state tax rate in the year it accrues, even if not withdrawn.