InterestMath

CD Calculator

Certificate of deposit calculator. Calculate maturity value, total interest earned, and compare different CD terms.

CD Details
$
%

Maturity Value

$10,459.4

Total Interest Earned

$459.4

Effective Annual Yield

4.59%

Interest Earned by Term Length
CD Term Comparison
TermDepositInterest EarnedMaturity Value
6 Mo$10,000$227.12$10,227.12
1 YrSelected$10,000$459.4$10,459.4
2 Yr$10,000$939.9$10,939.9
3 Yr$10,000$1,442.48$11,442.48
5 Yr$10,000$2,517.96$12,517.96
How CD Interest Is Calculated

A Certificate of Deposit earns interest based on the deposited amount, the annual percentage yield (APY), the term length, and how often interest compounds.

The formula used is:

A = P × (1 + r/n)^(n × t)

Where A is the maturity value, P is the deposit, r is the annual rate, n is the number of compounding periods per year, and t is the term in years.

The Effective Annual Yield shows your true annual return after accounting for compounding. If you have a 4.5% APY compounded monthly, the effective yield is slightly higher than a 4.5% rate compounded quarterly.

Frequently Asked Questions

This calculator is for educational purposes only and does not constitute financial advice. Consult a qualified financial advisor for personalized guidance.