CD Calculator

Find what a certificate of deposit is worth at maturity, and what an early withdrawal would cost.

$
Early Withdrawal (Optional)
Check your bank’s disclosure; 3 to 12 months is common.
Fractions and decimals both work.
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At Maturity
Interest earned
Stated rate (APR)
Average per month
If withdrawn early
After tax
Maturity Date

CD Ladder

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CDDepositAPYMonthsInterestMaturesRemove

How to Calculate CD Interest

Banks quote CDs by APY, the yearly yield after compounding, so the growth is simple to figure: raise (1 + APY) to the number of years.

Value at maturity = deposit × (1 + APY)months ÷ 12
APR (the stated rate) = m × ((1 + APY)1/m − 1)

Early withdrawal penalties are usually a number of months of interest at the CD's rate. This page figures the penalty as that many months of simple interest on the deposit, the method most banks disclose; yours may differ.

Worked Example

Tips

A CD ladder (several CDs maturing at different times) keeps some money available without paying penalties. CD interest is taxed as ordinary income in the year it's credited, even if you leave it in the CD. FDIC and NCUA insurance covers up to $250,000 per depositor, per bank, per ownership category.