CD Interest Calculator

CD Calculator

Estimate your certificate of deposit ending balance and interest earned using your deposit, rate, and term.

CD Interest Calculator

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Enter an amount between $1 and $10,000,000.

Quick amount
Rate Type
%
Quick rate
CD Term
Compounding
Included in APY

APY already accounts for compounding.

Your CD Return

Ending Balance
$10,450.00
Initial Deposit
$10,000.00
Interest Earned
+$450.00
Total Return
4.50%

A $10,000 CD earning 4.50% APY for 12 months would grow to approximately $10,450.00, including $450.00 in interest.

Estimates are based on the information you enter and may differ from the actual amount paid by a bank.

Balance Growth

Balance growth chartThe balance grows from $10,000.00 at the start to approximately $10,450.00 over 12 months.$10.5K$10.3K$10.1K$9.9KStartMonth 6Month 12

Compare CD Rates

How different rates affect your balance over the same term.

CD rate comparison using your deposit and term
APYInterest EarnedEnding Balance
4.00%$400.00$10,400.00
4.50%Current$450.00$10,450.00
5.00%$500.00$10,500.00
5.50%$550.00$10,550.00

Compare CD Terms

How your balance changes across common CD terms at your current rate.

CD term comparison using your deposit and rate
TermInterest EarnedEnding Balance
3 months$110.65$10,110.65
6 months$222.52$10,222.52
12 monthsCurrent$450.00$10,450.00
24 months$920.25$10,920.25
36 months$1,411.66$11,411.66
60 months$2,461.82$12,461.82

How to Use the CD Calculator

Start with the amount you plan to deposit. Then choose whether your rate is an APY or a nominal interest rate, enter the rate, and select a CD term. If you use an interest rate, also choose a compounding frequency. The results update as you type, so you can compare different deposit amounts and rates without pressing a button each time.

The ending balance is the estimated amount you would have at maturity, and the interest earned is the difference between that balance and your initial deposit. Use the rate and term comparison tables below the result to see how small changes can affect your return.

What This CD Calculator Shows

  • Your estimated ending balance at maturity.
  • The total interest earned over the CD term.
  • A month-by-month balance growth chart.
  • A detailed breakdown of interest by period.
  • Side-by-side rate and term comparisons.

For a deeper look at how the effective annual return works, try the CD APY Calculator.

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