CD inputs
This projection assumes a fixed annual yield and no recurring monthly deposits.
Essential Calculator
CD Calculator
Use this CD calculator to estimate how a certificate of deposit could grow over a fixed term at a stated annual yield.
How to use this page
- Enter the deposit amount, annual yield, and term length.
- Use the results to compare different term lengths or deposit amounts.
- This works well for fixed-term savings goals where preserving principal matters.
Results
Ending balance$17,267
Total contributions$15,000
Investment growth$2,267
Y3$17,267
What this calculator helps you see
CDs are often used for certainty rather than maximum return, so the calculator works best when it helps you compare fixed-yield growth against other short-term savings options.
When to use this calculator
Compare CD terms
Use this to see whether a longer term produces enough extra growth to justify reduced access to the funds.
Plan a fixed savings goal
A CD can be useful when you want a known term and a predictable yield.
Formula
CD growth = deposit × compounding over the term
This estimate uses compound growth over a fixed term to show how the deposit may grow at a stated annual yield.
Worked example
A $15,000 CD at 4.7% over 3 years can provide predictable growth, which is useful when certainty matters more than flexibility.
| Item | Value |
|---|---|
| Initial deposit | $15,000 |
| Annual yield | 4.7% |
| Term | 3 years |
| Main tradeoff | Predictability versus access to funds |
Related calculators
Before you decide
- Outputs are estimates and should be reviewed against lender or plan-specific terms.
- Inputs are intentionally transparent so assumptions are easy to audit.
- Rates, fees, taxes, and account terms can change the final result.
Page details
- Updated April 15, 2026
- For assumptions and general guidance, see Methodology.
- For how explanatory content is written, see Editorial Policy.
CD decision tradeoff
| Choice | Potential benefit | Potential drawback |
|---|---|---|
| Longer term | More yield | Less flexibility |
| Shorter term | More access | Possibly less yield |
| Larger deposit | More total interest | More cash tied up |
Questions and answers
Can I add money during the CD term?
Some products allow it, many do not. This calculator includes an optional monthly addition for rough comparison, but actual account rules vary.
Why compare CDs with savings accounts?
Because the tradeoff is usually between yield certainty and access to the money.