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CD Calculator

Project the maturity value and interest earned on a certificate of deposit from its rate, term, and compounding frequency.

Reviewed 2026-06-18 · Formula and example verified by the CalcPilot Editorial Team

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Maturity value

$12,517.96
Total interest earned
$2,517.96

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Quick answer

How do you calculate CD Maturity?

Use Maturity = Principal × (1 + Rate ÷ n)^(n × Years). Enter the matching values above to calculate the result instantly.

What it measures

Understanding CD Maturity

Project the maturity value and interest earned on a certificate of deposit from its rate, term, and compounding frequency. A certificate of deposit pays a fixed rate for a set term, and compounding frequency nudges the final total above simple interest. Because the rate is locked, a CD trades flexibility for predictability — withdrawing early usually forfeits some interest as a penalty.

Interpretation

What the result means

The headline figure is the value at maturity under the entered rate and compounding; the breakdown isolates the interest earned over the term.

Action

How to use it

Compare the stated rate against the annual percentage yield when shopping CDs, and weigh the locked term against your need for access to the cash.

Limits

What it leaves out

This assumes a fixed rate, no early withdrawal, and no taxes; interest is generally taxable in the year it is credited, which reduces the net return.

The math

CD Maturity formula

Maturity = Principal × (1 + Rate ÷ n)^(n × Years)

Worked example

Example calculation

$10,000 in a 5-year CD at 4.5% compounded monthly.
Calculation
$10,000 × (1 + 0.045 ÷ 12)^(12 × 5)
Result
About $12,518 at maturity

Step by step

How to use this calculator

  1. 1Enter deposit amount, annual interest rate, term (years), compounds per year.
  2. 2Keep every input on the same time period and measurement basis.
  3. 3Review the result, then change one assumption at a time to test scenarios.

Decision support

When this calculator is useful

  • Comparing CD offers
  • Planning fixed savings
  • Estimating interest earned

Common questions

Frequently asked questions

Which inputs should I use for CD Maturity?

Use deposit amount, annual interest rate, term (years), compounds per year, measured from the same source and period. Include only values that match the definitions shown beside each field.

Why might two CD Maturity calculations differ?

The systems or accounting policies may define deposit amount, annual interest rate, term (years), compounds per year differently. Compare the time period, scope, source, and treatment of exceptional items before comparing results.

How often should I recalculate CD Maturity?

Recalculate when any input changes materially and on the same reporting cadence used for the decision. Save the source and date of each input so the trend remains comparable.

Can I use CD Maturity by itself?

No single metric captures the full decision. Use the result with the related measures, assumptions, and limitations shown on this page.

Calculation reviewed: 2026-06-18. CalcPilot uses the formula shown above and tests representative values during the production build. See our methodology and correction policy.

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