CD Calculator
Find what a certificate of deposit is worth at maturity for its rate, compounding and term, after tax.
Change the values and press Calculate to work out your own figures.
Enter the deposit, rate, compounding and term.
| Year | Contributions | Interest | Balance |
|---|---|---|---|
| 1 | $0.00 | $500.00 | $10,500.00 |
| 2 | $0.00 | $525.00 | $11,025.00 |
| 3 | $0.00 | $551.25 | $11,576.25 |
Show the working
- each month: balance × periodic rate × (1 − tax) is added, with contributions at the start or end
- periodic rate = (1 + r ÷ n)^(n ÷ 12) − 1
How to use it
Enter the deposit, rate, compounding and term.
Enter amounts without commas or with them; rates are percentages (5 for 5%). Negative amounts are allowed where a sign means money paid out.
Key facts
balance = deposit × (1 + r ÷ n)^(n × years)
Early withdrawal
Most CDs charge a penalty, often several months of interest, for withdrawing before maturity.
Questions
What is $10,000 in a 3-year CD at 5% worth?
$11,576.25 compounded yearly.
Formulas
balance = deposit × (1 + r ÷ n)^(n × years)
Sources
Limitations
- Results are estimates for planning, not offers or financial advice; lenders and banks may round, count days or time payments differently.
- Rates are nominal annual rates compounded as you choose; payments at a different frequency use the equivalent periodic rate.