CD Calculator
Calculate how much your certificate of deposit will earn at maturity. Compare terms, rates, and compounding frequencies to find the best CD for your savings.
CD Details
CD Returns
Total Value at Maturity
$10,511.62
Total Interest Earned
$511.62
Annual Percentage Yield (APY)
5.116%
Effective Interest Rate
5.116%
Principal vs Interest
Compare CD Terms
Projected returns for $10,000.00 at 5% with monthly compounding
| Term | Interest Earned | Total Value | APY |
|---|---|---|---|
| $125.52 | $10,125.52 | 5.116% | |
| $252.62 | $10,252.62 | 5.116% | |
| $381.31 | $10,381.31 | 5.116% | |
| $511.62 | $10,511.62 | 5.116% | |
| $777.16 | $10,777.16 | 5.116% | |
| $1,049.41 | $11,049.41 | 5.116% | |
| $1,614.72 | $11,614.72 | 5.116% | |
| $2,833.59 | $12,833.59 | 5.116% |
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How to Use the CD Calculator
This CD calculator helps you estimate how much interest a certificate of deposit will earn over its term. Enter your initial deposit amount, the annual interest rate (APY) offered by your bank, the CD term in months, and your preferred compounding frequency. The calculator instantly shows your total value at maturity, total interest earned, and effective annual percentage yield. Use the quick-select term buttons to rapidly compare how different CD lengths affect your returns.
Understanding compounding frequency: The compounding frequency determines how often earned interest is added back to your balance. Daily compounding adds interest every day, monthly adds it once per month, quarterly every three months, and annually once per year. More frequent compounding earns slightly more because each interest payment starts earning its own interest sooner. For example, a $10,000 CD at 5% APY earns about $2 more per year with daily compounding versus monthly. While the difference is small for short terms, it compounds over longer periods.
Comparing CD terms: The comparison table below the calculator shows projected returns for all common CD terms at your entered rate. This makes it easy to see the trade-off between locking your money for longer and earning more interest. Generally, longer-term CDs offer higher rates, but you should consider whether you might need access to the funds before maturity. Early withdrawal penalties can significantly reduce or even eliminate your interest earnings.
CD laddering strategy: Instead of putting all your savings into one CD, consider building a CD ladder. Split your deposit across multiple CDs with staggered maturity dates — for instance, equal amounts in 12-month, 24-month, 36-month, 48-month, and 60-month CDs. As each CD matures, reinvest into a new long-term CD at the current rate. This strategy gives you periodic access to your money while still capturing higher long-term rates. Use this calculator to model each rung of your ladder and estimate total returns across all CDs.
When CDs make sense: CDs are ideal when you have a specific savings goal with a known timeline — such as a home down payment in two years or a vacation fund. They guarantee a fixed return regardless of market fluctuations, making them a safe complement to riskier investments. CDs are also useful when interest rates are high and expected to fall, because you lock in today's rate for the full term. Compare CD rates across multiple banks, as online banks and credit unions often offer significantly higher rates than traditional brick-and-mortar banks.
Frequently Asked Questions
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, called the term. In exchange for locking your money away for the term length — typically ranging from 3 months to 5 years — you receive a higher interest rate than a regular savings account. When the CD matures at the end of the term, you receive your original deposit plus all earned interest.
How is CD interest calculated?
CD interest is calculated using the compound interest formula: A = P × (1 + r/n)^(n×t), where P is your principal deposit, r is the annual interest rate, n is the number of compounding periods per year, and t is the term in years. Most CDs compound daily or monthly. Daily compounding earns slightly more than monthly because interest is added to your balance more frequently, allowing each new interest payment to earn additional interest sooner.
What is a CD ladder and how does it work?
A CD ladder is a strategy where you split your savings across multiple CDs with staggered maturity dates. For example, instead of putting $10,000 into a single 5-year CD, you invest $2,000 each into 1-year, 2-year, 3-year, 4-year, and 5-year CDs. As each CD matures, you reinvest it into a new 5-year CD. This gives you regular access to portions of your money while still earning higher long-term rates. It balances liquidity with higher yields.
What are early withdrawal penalties for CDs?
If you withdraw money from a CD before it matures, you typically pay an early withdrawal penalty. Penalties vary by bank and term length but are usually expressed in months of interest — for example, 3 months of interest for a 1-year CD or 6 months of interest for a 5-year CD. Some banks offer no-penalty CDs with slightly lower rates. Always check the penalty terms before opening a CD, especially for longer terms.
How do CDs compare to savings accounts?
CDs generally offer higher interest rates than regular savings accounts because you agree to leave your money deposited for a fixed term. Savings accounts offer full liquidity — you can withdraw anytime — but pay lower rates. High-yield savings accounts have narrowed this gap in recent years, sometimes offering rates close to short-term CDs. CDs are best when you have money you won't need for a specific period and want a guaranteed, predictable return.
Are CDs safe? Is my money insured?
Yes, CDs are one of the safest investment options available. CDs at FDIC-insured banks are protected up to $250,000 per depositor, per bank, per ownership category. CDs at credit unions are similarly insured by the NCUA for up to $250,000. Unlike stocks or bonds, your principal is never at risk — you are guaranteed to receive your full deposit back plus the agreed-upon interest when the CD matures.