Finance calculator
Certificate of Deposit Calculator
Estimate CD maturity value, interest earned, and APY from deposit amount, rate, term, and compounding frequency.
FormulaMaturity value = deposit x (1 + annual rate / compounds per year)^(compounds per year x years)
Formula
CD maturity formula
CD offers can include penalties, minimum balances, rate tiers, renewal rules, and tax treatment not included in this estimate.
Maturity value = deposit x (1 + annual rate / compounds per year)^(compounds per year x years)
10,000 at 5% compounded monthly for 12 months matures to about 10,511.62 before taxes or penalties.
SourcesThis calculator includes source notes, assumptions, and exclusions so the result is easier to verify before use.
Sources and assumptions
Source notes
This calculator includes source notes, assumptions, and exclusions so the result is easier to verify before use.
- Effective year
- Current rules
- Last verified
- 2026-06-18
CD offers can include penalties, minimum balances, rate tiers, renewal rules, and tax treatment not included in this estimate.
Assumptions
- The CD rate is fixed for the entered term.
- Interest compounds at the selected frequency and stays in the CD.
- The deposit is held until maturity.
Not included
- Early withdrawal penalties, taxes, variable promotional rates, minimum deposits, insurance limits, and bank-specific rules.
FAQ7 common questions for this calculator.
FAQs
Does this CD calculator include early withdrawal penalties?+
No. It assumes the deposit is held to maturity.
Is APY the same as the quoted rate?+
Not always. APY includes compounding, while a quoted nominal rate may not.
Can CD rates change during the term?+
Many CDs have fixed rates, but product terms vary. Check the bank's exact disclosure before depositing money.
How does the Certificate of Deposit Calculator calculate the result?+
For the Certificate of Deposit Calculator, it uses the CD maturity formula: Maturity value = deposit x (1 + annual rate / compounds per year)^(compounds per year x years). 10,000 at 5% compounded monthly for 12 months matures to about 10,511.62 before taxes or penalties.
What information do I need to use the Certificate of Deposit Calculator?+
For the Certificate of Deposit Calculator, enter deposit amount, rate, term, and compounding frequency. Keep the units consistent with the calculator fields and compare your setup with the worked example on the page.
How accurate is the Certificate of Deposit Calculator?+
Certificate of Deposit Calculator is accurate for the rates, amounts, dates, and rules entered. It uses the CD maturity formula shown on this page. Real products can differ because of fees, taxes, contract terms, or changing official thresholds.
What should I check before using the Certificate of Deposit Calculator result?+
For the Certificate of Deposit Calculator, check deposit amount, rate, term, and compounding frequency, then compare the CD maturity formula and worked example with the contract or source you will rely on. Fees, tax year, currency, and payment timing can change the final decision.
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How to use the Certificate of Deposit Calculator
Estimate CD maturity value, interest earned, and APY from deposit amount, rate, term, and compounding frequency. The page also explains the CD maturity formula and shows a practical example: 10,000 at 5% compounded monthly for 12 months matures to about 10,511.62 before taxes or penalties.
- 1
Enter your details
Enter deposit amount, rate, term, and compounding frequency, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the CD maturity formula: Maturity value = deposit x (1 + annual rate / compounds per year)^(compounds per year x years).
- 3
Compare scenarios
Change one or more inputs to see how they affect the certificate of Deposit Calculator result before you use the estimate.