CD Ladder Calculator
Free CD ladder calculator. Build a certificate of deposit ladder strategy with staggered maturities to balance higher rates with regular liquidity access.
Certificate of Deposit (CD) Calculator
Free CD calculator. Calculate interest earned and maturity value for any certificate of deposit with flexible terms, rates, and compounding frequencies.
$
%
Maturity Value
$10,512.67
after 1y
Interest Earned⧉
$512.67
5.13% total return
Effective APY⧉
0.05%
From 0.05% nominal rate
Original Deposit⧉
$10,000.00
Principal invested
Monthly Interest (Avg)⧉
$42.72
Average earned per month
Growth Over Term
| Month | Balance | Interest Earned |
|---|---|---|
| 0 | $10,000.00 | $0.00 |
| 1 | $10,042.55 | $42.55 |
| 2 | $10,085.29 | $85.29 |
| 3 | $10,128.20 | $128.20 |
| 4 | $10,171.30 | $171.30 |
| 5 | $10,214.58 | $214.58 |
| 6 | $10,258.05 | $258.05 |
| 7 | $10,301.70 | $301.70 |
| 8 | $10,345.54 | $345.54 |
| 9 | $10,389.56 | $389.56 |
| 10 | $10,433.77 | $433.77 |
| 11 | $10,478.17 | $478.17 |
| 12 | $10,522.76 | $522.76 |
Planning notes, formulas, and examples
About the Certificate of Deposit (CD) Calculator
The Certificate of Deposit (CD) Calculator shows you exactly how much interest you will earn on a CD investment. Enter your deposit amount, APY or interest rate, term length, and compounding frequency to see the maturity value, total interest earned, and effective annual percentage yield.
CDs are one of the safest investment vehicles available, offering a guaranteed interest rate in exchange for locking your money away for a fixed term. They are FDIC insured up to $250,000 and typically offer higher rates than regular savings accounts because you commit to leaving your funds untouched until maturity.
Whether you are comparing CD offers from different banks, deciding between a 6-month and a 5-year term, or calculating expected returns for a specific savings goal, this calculator gives you the precise numbers you need to make an informed decision. CDs remain one of the safest savings vehicles available, offering guaranteed returns backed by FDIC insurance up to $250,000. Understanding exactly how much interest you will earn at different term lengths helps you balance liquidity needs against yield optimization.
When This Page Helps
CDs lock in a guaranteed rate, but choosing the wrong term or missing a better compounding option costs you money. This calculator helps you compare different CD offers apples-to-apples by showing the actual dollar return and effective APY for each option. It takes the guesswork out of CD shopping. Quickly seeing total interest earned across different terms and rates helps you lock in the best deal.
How to Use the Inputs
- Enter the deposit amount you plan to invest in the CD.
- Enter the annual interest rate or APY offered by the bank.
- Select the CD term length (months or years).
- Select the compounding frequency (daily, monthly, quarterly, or annually).
- View the maturity value, total interest earned, and effective APY.
- Compare different terms and rates to find the best option for your goals.
Formula used
FV = P(1 + r/n)^(n×t)
Interest Earned = FV – P
Effective APY = (1 + r/n)^n – 1
where P = deposit (principal), r = annual rate, n = compounding periods per year, t = term in yearsExample Calculation
Result: Maturity value: $10,513
A $10,000 CD at 5.00% APR compounded daily for 12 months grows to $10,513. Interest earned is $513. The effective APY is 5.13%, which is slightly higher than the stated 5.00% rate because daily compounding lets you earn interest on interest throughout the year.
Tips & Best Practices
- CDs with longer terms generally offer higher rates, but you sacrifice liquidity.
- Compare the effective APY, not the stated rate, when shopping across different compounding frequencies.
- Check for no-penalty CDs that let you withdraw early without a fee, though they typically offer lower rates.
- FDIC insurance covers up to $250,000 per depositor per bank, so split larger amounts across institutions.
- Consider a CD ladder strategy to balance higher rates with regular access to funds.
- Brokered CDs from investment firms sometimes offer higher rates than bank-direct CDs.
- Rates on CDs are locked at purchase, so buying when rates are high locks in a favorable return.
Choosing the Right CD Term
The ideal CD term depends on your timeline and rate outlook. If you need the money in 6 months, a 6-month CD is straightforward. For longer goals, consider whether rates are likely to rise or fall. When rates are expected to drop, locking in a longer term preserves today's rate. When rates are rising, shorter terms let you reinvest at higher rates sooner.
How Compounding Frequency Affects Returns
Daily compounding on a 5.00% rate produces an effective APY of 5.13%, while monthly compounding produces 5.12% and quarterly produces 5.09%. On a $10,000 deposit over 1 year, that's a difference of just $4 between daily and quarterly compounding. Over 5 years, the difference grows to about $23. While daily compounding is technically better, the difference is small at typical CD rates.
CDs vs. High-Yield Savings Accounts
CDs offer a guaranteed fixed rate but lock your money away. High-yield savings accounts offer variable rates but full liquidity. When HYSAs and CDs offer similar rates, the savings account is often better due to flexibility. CDs shine when they offer a meaningful premium over savings rates or when you want rate certainty in a falling-rate environment.
Sources & Methodology
Last updated:
Methodology
This worksheet applies deposit- and savings-instrument compounding using the stated APY, rate, term, and any early-withdrawal or maturity rules. It is a planning aid for comparing deposit-style products, not a quoted offer or guarantee.
Where the instrument has special rules (Treasury securities, I Bonds, CDs, or early-withdrawal penalties), the page keeps those rules explicit so the comparison stays conservative.
Sources
- Deposit accounts and CDs (FDIC) — Bank-deposit and certificate-of-deposit context.
- Savings Bonds and Treasury securities (U.S. TreasuryDirect) — Official savings-bond, I Bond, and Treasury bill rules.
- Money market funds (U.S. Securities and Exchange Commission) — Context for money-market return comparison.
Frequently Asked Questions
A CD is a time deposit offered by banks and credit unions. You deposit a fixed amount for a predetermined term (3 months to 10 years) and earn a guaranteed interest rate. In exchange, you agree not to withdraw the funds until maturity. CDs are FDIC insured and considered very low-risk investments.
Most CDs charge an early withdrawal penalty, typically expressed as a number of months of interest. For example, a 12-month CD might charge a 3-month interest penalty. This can eat into your principal if the CD is very new. Use the CD early withdrawal penalty calculator to see the exact impact.
The stated interest rate is the nominal annual rate. The APY (Annual Percentage Yield) includes the effect of compounding. A 5.00% rate compounded daily produces an APY of 5.13%. When comparing CDs, always use APY for an accurate comparison since it accounts for compounding differences.
CDs are attractive when interest rates are high, as they lock in favorable returns. In a rising rate environment, shorter terms let you reinvest at higher rates sooner. In a falling rate environment, longer terms lock in today's higher rates before they drop.
Interest earned on CDs is taxed as ordinary income at your federal and state tax rate. Banks report interest on form 1099-INT. You owe taxes on the interest in the year it is earned, even if the CD has not matured. For multi-year CDs, you pay taxes on accrued interest each year.
A jumbo CD requires a larger minimum deposit, typically $100,000 or more. In return, jumbo CDs often offer slightly higher interest rates. However, the rate premium has narrowed in recent years, so always compare jumbo and standard CD rates before committing a large sum.
Traditional CDs do not allow additional deposits after opening. Some banks offer “add-on CDs” that let you make additional deposits during the term. If you want flexibility to add funds, look specifically for add-on CD products or consider using a high-yield savings account instead.
A bump-up CD lets you request one rate increase during the term if rates rise. A step-up CD has predetermined rate increases at set intervals. Both offer some protection against rising rates but typically start with a lower initial rate than standard fixed-rate CDs.
More in this topic
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