CD Calculator & CD Laddering Strategist
Calculate how much a certificate of deposit will be worth at maturity and how much interest it earns — plus early-withdrawal penalties, APY vs APR, and a 5-year CD ladder.
FDIC / NCUA insured up to $250,000 per depositor, per institution
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Interest accrues and compounds inside the CD
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Rate is locked for the term, even if market rates fall.
Example rate: % APY. Fully liquid, but the rate can change at any time.
5-Year CD Rolling Ladder Simulation
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Matures Year 1 & reinvests
Matures Year 2 & reinvests
Matures Year 3 & reinvests
Matures Year 4 & reinvests
Longest term, highest rate
Enter the APYs currently offered for each term. Defaults are examples.
| Ladder Horizon | Liquidity Event | Tranche Matured | Accrued Interest | Rolling Reinvestment Action | Accessible Liquidity |
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APY vs APR: The Compounding Spread
The APR is the stated annual rate before compounding. The APY is what you actually earn in a year once interest compounds:
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Early Withdrawal Penalty Traps & Break-Even
Breaking a CD early usually forfeits a set number of days of simple interest. If rates rise sharply, breaking and reinvesting can still come out ahead:
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Why CDs offer predictable, fixed returns
Unlike a savings account, a CD locks in both your rate and your money for a fixed term — in exchange, banks typically offer a higher rate than a standard savings account, since they can rely on the deposit staying put for the full term.
The trade-off is liquidity: withdrawing funds before the CD matures usually triggers an early withdrawal penalty, often equal to several months of interest, so CDs work best for money you're confident you won't need during the term.
By Suhaib Hassan · Formula verified 27 Sep 2026 · How CalculatePilot verifies formulas →
Comparing CD terms and rates
Longer-term CDs don't always offer meaningfully higher rates than shorter-term ones — rate curves shift with the broader interest rate environment, so it's worth comparing actual offered rates across terms rather than assuming longer always means better.
A common strategy called 'CD laddering' spreads deposits across multiple CDs with staggered maturity dates, balancing the higher rates of longer terms with periodic access to some of your funds.
Frequently asked questions
What happens if I withdraw from a CD early?
Most CDs charge an early withdrawal penalty, commonly equal to a few months of interest, which can reduce or even eliminate the interest earned depending on how early you withdraw.
Is a CD better than a savings account?
CDs typically offer higher fixed rates in exchange for locking up your money for a set term, while savings accounts offer more flexibility with generally lower, variable rates — the better choice depends on whether you need access to the funds.
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