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CD Calculator

Written by Calcida Team
Reviewed for accuracy and clarity
Last updated: April 2026

Calculate how much interest you earn on a Certificate of Deposit. Enter your deposit amount, APY, and term to see total interest and final value.

This calculator is useful for people comparing financial scenarios quickly You will typically enter the inputs shown in the calculator.

The result represents an estimate based on standard financial math If you are browsing similar tools, start with Investment Calculators or view the full calculators directory.

Also useful: Savings Calculator: Reach Your Financial Goals, Compound Interest Calculator: Grow Your Wealth.

Final CD Value

$10,475
Total Interest Earned$475
APY4.75%
MonthBalanceInterest Earned
1$10,039$39
2$10,078$78
3$10,117$117
4$10,156$156
5$10,195$195
6$10,235$235
7$10,274$274
8$10,314$314
9$10,354$354
10$10,394$394
11$10,435$435
12$10,475$475

What should you do next?

Explore more tools for your financial journey:

Salary Calculators →
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How This Calculator Works

This CD calculator shows how much interest your deposit earns over the CD term, using compound interest based on the APY. It shows a month-by-month balance breakdown so you can see exactly how your money grows.

How CD Interest Compounds

Final Value = Principal × (1 + APY ÷ 100)Years
Total Interest = Final Value − Principal

APY (Annual Percentage Yield) already accounts for compounding frequency. Use APY — not APR — for accurate calculations. Banks are required to advertise APY on CDs so you can compare them fairly.

The monthly balance table shows how your balance grows each month, which is useful for planning if you need to access funds by a certain date.

Formula

This calculator uses standard financial math to estimate results from your inputs.

Example Calculation

Example: $25,000 CD at 4.75% APY (2026)

6-Month CD

Deposit$25,000
APY4.75%
Interest earned~$586
Final value~$25,586

1-Year CD

Interest earned~$1,188
Final value~$26,188

5-Year CD

Interest earned~$6,632
Final value~$31,632

*5-year CD earns 5.6× more interest than a 6-month CD thanks to compound growth. Compare to a 0.5% traditional savings account: same $25K earns just $630 over 5 years.

CD Strategy: Get the Highest Safe Return on Your Cash

  1. Compare online banks first. Online banks consistently offer 3–5× higher CD rates than traditional banks. FDIC insurance applies equally to online banks — there is no safety trade-off.
  2. Build a CD ladder for flexibility. Split $50,000 into five $10,000 CDs (1, 2, 3, 4, 5 years). Each year, one matures — giving you access to funds and the option to reinvest at then-current rates.
  3. Lock in high rates before the Fed cuts. When the Fed signals rate cuts, locking in a 5-year CD at the current high rate can significantly outperform rolling over short-term CDs in a declining rate environment.
  4. Consider no-penalty CDs. No-penalty CDs allow early withdrawal without forfeiting interest after a short holding period (typically 6–7 days). Useful for emergency funds or uncertain timelines.
  5. Check the penalty before you commit. A 12-month interest penalty on a 5-year CD means you need to hold it for over a year before early withdrawal breaks even. Calculate your break-even point before opening.

Related Savings & Investment Tools

Savings CalculatorCompare CD growth vs. regular savings contributions.Compound Interest CalculatorSee long-term compounding on any investment.Future Value CalculatorProject investment growth with regular contributions.Roth IRA CalculatorCompare tax-free retirement growth vs. CD yields.

Frequently Asked Questions

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