Certificate of Deposit Calculator Online
CD Calculator
CD Investment Details
Investment Results
Final Balance
$0.00
Principal + Interest
Total Interest
$0.00
Before taxes
After-Tax Interest
$0.00
Net earnings
Effective Rate
0.00%
Annual return
Investment Growth Over Time
Principal vs Interest Breakdown
Accumulation Schedule
| Year | Deposit | Interest | Ending Balance |
|---|
The CD calculator works out the interest earned and total value of a Certificate of Deposit at maturity. Enter the deposit amount, APY, and term to see exactly how much your CD will earn.
How CD Interest Is Calculated
CDs use compound interest, typically compounded daily or monthly. The stated APY (Annual Percentage Yield) already factors in compounding, so you can calculate the final value directly.
Ending Balance = Principal x (1 + APY)^(Term in Years)
Example: $10,000 at 5.0% APY for 2 years. Ending balance = $10,000 x (1.05)^2 = $11,025. Interest earned = $1,025.
CD Earnings by Term and Rate
| Deposit | 4.5% / 1yr | 5.0% / 1yr | 5.0% / 2yr | 4.75% / 5yr |
|---|---|---|---|---|
| $5,000 | $225 | $250 | $513 | $1,329 |
| $10,000 | $450 | $500 | $1,025 | $2,658 |
| $25,000 | $1,125 | $1,250 | $2,563 | $6,646 |
| $50,000 | $2,250 | $2,500 | $5,126 | $13,291 |
CD Laddering Strategy
CD laddering splits your money across multiple CDs with staggered maturity dates (1, 2, 3, 4, and 5 years). When the shortest CD matures, you reinvest at the current rate. This provides regular access to funds while capturing higher rates from longer terms. It reduces the risk of locking everything into a low rate for too long.
Early Withdrawal Penalties
Most CDs charge a penalty for withdrawing before the maturity date. Typical penalties: 3 months of interest for terms under 1 year, 6 months for 1-3 year terms, and 12 months for longer terms. Some online banks offer no-penalty CDs with lower rates. Factor the penalty into your calculation if there is any chance you will need the funds early.
Frequently Asked Questions
How does a CD work?⌄
You deposit money for a fixed term (typically 3 months to 5 years) at a fixed interest rate. The bank pays interest over the term, and you receive your principal plus interest at maturity. CDs are FDIC-insured up to $250,000 per depositor per institution, making them one of the safest savings vehicles.
What is a good CD rate?⌄
In early 2025, competitive CD rates range from 4.5-5.5% APY for 1-year terms at online banks. Traditional banks typically offer lower rates. Always compare APY (not just the stated rate) across several institutions. The best rates are usually at online banks and credit unions.
Is a CD better than a savings account?⌄
CDs typically pay more than savings accounts in exchange for locking up your money. If you will not need the funds during the term, a CD earning 5.0% beats a high-yield savings account at 4.5%. If you might need the money or want flexibility, keep it in a savings account.
Are CDs safe?⌄
Yes. CDs at FDIC-insured banks are protected up to $250,000 per depositor per institution. CDs at NCUA-insured credit unions have the same coverage. The principal and stated interest are guaranteed, unlike investments in stocks or bonds.
What happens when my CD matures?⌄
The bank sends a notice before maturity. You typically have a grace period (often 7-10 days) to withdraw or reinvest. If you do nothing, most banks automatically renew the CD at the current rate for the same term. Check the renewal terms before maturity — rates may have changed significantly.