Inputs
Adjust the assumptions to match your scenario. Results update instantly.
Results
Primary outputs and comparison insights are built from the current inputs.
Interest earned
$500.00
Total interest earned at maturity.
Maturity value
$10,500.00
Total value at the end of the term.
Monthly interest
$41.67
Average interest earned per month.
Sponsored
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How this CD Calculator works
The CD Calculator projects how much interest a certificate of deposit will earn based on the deposit amount, APY, and term length. Enter deposit, apy, and term (months) to estimate interest earned, maturity value, and monthly interest. The calculator updates instantly and adds a comparison table plus chart so you can test the sensitivity of the result before you use it in a decision.
Quick guide
Jump to the section you need, then return to the cd calculator.
Inputs
- Initial deposit into the CD.
- Annual percentage yield offered by the CD.
- CD maturity period in months.
Outputs
- Total interest earned at maturity.
- Total value at the end of the term.
- Average interest earned per month.
Assumptions
- No early withdrawal.
- Interest compounds annually at the stated APY.
Tips
- Longer terms often offer higher APYs.
- Consider a CD ladder to balance access and yield.
CD Calculator formula guide
Use these cd calculator formulas to audit the output or explain it to someone else.
1 formulas
CD Calculator examples
Review a ready-made cd calculator scenario, copy it, then tweak inputs to match your case.
Example
One-year high-yield CD
Inputs
- Example input Deposit: $25,000.00
- Example input APY: 5.25%
- Example input Term (months): 12
Outputs
- Example result Interest earned: $1,312.50
- Example result Maturity value: $26,312.50
- Example result Monthly interest: $109.38
CDs are FDIC-insured up to $250,000, making them a low-risk savings option.
Return by APY
| APY | Interest earned | Maturity value |
|---|---|---|
| 3% | $300.00 | $10,300.00 |
| 4% | $400.00 | $10,400.00 |
| 5% | $500.00 | $10,500.00 |
| 6% | $600.00 | $10,600.00 |
| 7% | $700.00 | $10,700.00 |
Shop around for the best APY, as rates vary significantly between institutions.
CD earnings comparison
Focus point
3%
$300.00
Position
#1 of 5
Original order
Share of total
12%
Total: $2,500.00
Shop around for the best APY, as rates vary significantly between institutions.
References
- Certificate of deposit interest calculations
- FDIC deposit product information
Learn more
Guides connected to the cd calculator
Use these short guides when you want the decision framework behind the numbers, not just the raw output.
Category guide
Financial Calculator Guide
Understand when to use payment, return, tax, and budgeting calculators so you can make cleaner money decisions.
Directly related
Articles that mention this calculator
FAQ
CD Calculator FAQ
What does the CD Calculator do?
The CD Calculator projects how much interest a certificate of deposit will earn based on the deposit amount, APY, and term length. Enter deposit, apy, and term (months) to estimate interest earned, maturity value, and monthly interest. The calculator updates instantly and adds a comparison table plus chart so you can test the sensitivity of the result before you use it in a decision. It is part of our financial toolkit.
What inputs do I need?
Typical inputs include Initial deposit into the CD., Annual percentage yield offered by the CD., CD maturity period in months..
How are the results calculated?
We follow the formulas and assumptions outlined in the "How this calculator works" section. You will see outputs like Total interest earned at maturity., Total value at the end of the term., Average interest earned per month..
Can I share or download the results?
Use the Copy link or Print buttons to share your results. If a table or chart appears, you can download the data as CSV.
Is my data stored?
No. Calculations run in your browser and we do not store your inputs.
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