CD Calculator – Certificate of Deposit
Results are estimates based on the values you enter. Recheck your inputs and assumptions before using the output for decisions.
Estimate certificate of deposit maturity value from deposit amount, annual rate, term, and compounding frequency.
CD Calculator – Certificate of Deposit
Free online CD calculator to estimate the maturity value of a certificate of deposit from deposit amount, interest rate, term, and compounding frequency. This calculator is useful for savers, investors, students, and anyone comparing fixed-term deposit products. A certificate of deposit usually locks money for a fixed period in exchange for a stated interest rate, and the final amount depends not only on the quoted rate but also on how often interest compounds. That is why it helps to calculate maturity value and interest earned directly instead of relying only on the advertised CD rate.
This page uses four deposit inputs. Deposit amount means the original amount placed into the CD. Annual interest rate means the quoted yearly rate. CD term means how long the deposit stays invested. Compounds per year means how often interest is added during the term, such as annually, quarterly, monthly, or daily. Once those values are entered, the calculator shows maturity value, interest earned, annualized yield, and maturity value per $1,000 deposit. These outputs help you compare CDs more clearly because some products may share a similar rate but differ in term length or compounding frequency.
The formula of certificate of deposit
Maturity value = Deposit amount x (1 + Annual rate / Compounds per year) ^ (Years x Compounds per year)
Interest earned = Maturity value – Deposit amount
Annualized yield = (Maturity value / Deposit amount) ^ (1 / Years) – 1
Maturity value per $1,000 deposit = (Maturity value / Deposit amount) x 1000
Here deposit amount means the original principal placed in the CD, annual rate means the quoted yearly interest rate, compounds per year means how many times interest is credited within one year, maturity value means the total amount available at the end of the CD term, interest earned means the total interest added over the term, and annualized yield means the effective yearly growth rate implied by the CD result.
Solved Example
Example 1: Find the maturity value of a $10,000 CD with a 5% annual rate for 3 years compounded monthly.
Solve: Maturity value = 10000 x (1 + 0.05 / 12) ^ (3 x 12)
Maturity value = 10000 x (1.0041667) ^ 36 = $11,614.72
Interest earned = 11614.72 – 10000 = $1,614.72
Annualized yield = (11614.72 / 10000) ^ (1 / 3) – 1 = 5.12%
Maturity value per $1,000 deposit = (11614.72 / 10000) x 1000 = $1,161.47
Example 2: Find the result for a $5,000 CD with a 4.5% annual rate for 2 years compounded quarterly.
Solve: Maturity value = 5000 x (1 + 0.045 / 4) ^ (2 x 4) = $5,467.56
Interest earned = 5467.56 – 5000 = $467.56
Annualized yield = (5467.56 / 5000) ^ (1 / 2) – 1 = 4.58%
Maturity value per $1,000 deposit = (5467.56 / 5000) x 1000 = $1,093.51
Example 3: Find the result for a $25,000 CD with a 6% annual rate for 5 years compounded annually.
Solve: Maturity value = 25000 x (1 + 0.06) ^ 5 = $33,455.64
Interest earned = 33455.64 – 25000 = $8,455.64
Annualized yield = (33455.64 / 25000) ^ (1 / 5) – 1 = 6.00%
Maturity value per $1,000 deposit = (33455.64 / 25000) x 1000 = $1,338.23
Table of CD calculator
| Deposit | Rate | Term | Compounding | Maturity Value |
|---|---|---|---|---|
| $5,000 | 4.50% | 2 years | Quarterly | $5,467.56 |
| $10,000 | 5.00% | 3 years | Monthly | $11,614.72 |
| $15,000 | 5.25% | 4 years | Monthly | $18,519.32 |
| $25,000 | 6.00% | 5 years | Annually | $33,455.64 |
How to use this CD calculator
Enter the deposit amount in the proper input field. After that, enter the annual interest rate and the CD term in years. Then choose how many times interest compounds each year. Finally, click the calculate button. The calculator will show maturity value, interest earned, annualized yield, and maturity value per $1,000 deposit in the result box.
This calculator is useful when comparing certificates of deposit with different terms and compounding frequencies. A higher interest rate usually improves the result, but compounding frequency can also increase the final maturity value. Looking at interest earned beside maturity value makes it easier to see how much of the final total came from growth rather than the original deposit. The annualized yield result also gives a cleaner way to compare CDs that use different compounding schedules.
When using the result, remember that this calculator assumes the CD is held to maturity and does not include taxes, penalties for early withdrawal, promotional conditions, or partial withdrawals. It is best used for planning and comparison rather than exact bank disclosure replacement. Even so, certificate-of-deposit calculations remain one of the clearest ways to estimate fixed-term savings growth. This calculator gives a fast numerical view that supports deposit planning, CD comparison, savings analysis, and finance learning.