CD Calculator · Practical guide
CD vs. High-Yield Savings Account
A dollar-for-dollar comparison of locking in a CD rate versus keeping money in a savings account.
At a glance
The Short Answer
On a $10,000 balance, a 4.75% APY one-year CD earns $475.00 while a 1% savings account earns about $100.46 — a difference of $374.54 in the CD's favor. The trade: the CD locks both the rate and your money for the term.
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Enter your own values, then compare the result with the examples below.
Results
The Dollar Difference
Growth of $10,000 at 4.75% APY in a CD versus 1% APY in a savings account with monthly compounding:
| Term | CD at 4.75% | Savings at 1% | CD Advantage |
|---|---|---|---|
| 6 months | $10,234.74 | $10,050.10 | $184.64 |
| 1 year | $10,475.00 | $10,100.46 | $374.54 |
| 2 years | $10,972.56 | $10,201.93 | $770.63 |
When the CD Wins
Choose the CD when the money has a job with a deadline — a down payment next year, tuition in 18 months — and you will not need it early. Your rate is guaranteed even if market rates fall, and the calculator above shows the exact maturity value for any deposit, APY, and term.
When Savings Wins
Choose the high-yield savings account for an emergency fund or any balance you might need on short notice. CD early withdrawal penalties typically run 3 to 12 months of interest — about $234.74 on a $10,000 CD at 4.75% APY with a 6-month penalty — which can erase the yield advantage in one move. If savings rates rise sharply, a liquid account also lets you capture the increase immediately, while a CD holder waits for maturity.
Frequently Asked Questions
Are high-yield savings accounts as safe as CDs?
Yes, when held at FDIC-insured banks. Both are protected up to $250,000 per depositor, per institution, per ownership category.
Can savings account rates change?
Yes — banks can raise or lower a savings APY at any time. A CD rate is fixed for the entire term, which protects you if rates fall but locks you out if they rise.
What if I need my CD money early?
Most banks charge an early withdrawal penalty of 3 to 12 months of interest depending on the term. A no-penalty CD or a CD ladder keeps some flexibility while still earning CD-level rates.
Should I split money between the two?
Many savers do exactly that: emergency cash in a high-yield savings account, and money earmarked for future dated expenses in CDs matched to those dates.