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About the CD Calculator
This CD calculator computes the maturity value and total interest earned on a certificate of deposit. Enter your deposit, rate, and term to see how much your money grows by the end of the term.
The calculator uses the standard compound interest formula A = P x (1 + r/n)^(n x t), where P is the principal, r is the annual rate, n is the number of compounding periods per year, and t is the term in years. You need your initial deposit, the annual interest rate, the term length, and the compounding frequency. Most CDs compound daily or monthly, so check your account terms before you calculate. For large deposits, consider speaking with a financial professional before locking in a long term.
- Enter your initial deposit amount.
- Set the interest rate and term length.
- Select the compounding frequency and view the maturity value.