About CD Interest Calculator
CD Interest Calculator is a free tool for people who want to estimate how much a certificate of deposit could earn before they open an account.
We built this site around one idea: understanding a CD should not require a spreadsheet or a finance degree. You enter your deposit, rate, and term, and the calculator immediately shows an estimated ending balance and interest earned. The tools run in your browser, so you can adjust numbers quickly and compare different scenarios.
Our goal is to provide clear, useful estimates that help you plan. We are not a bank, credit union, or financial advisor, and this website does not open accounts, hold deposits, or offer financial advice. Always confirm rates, terms, and early withdrawal rules with the financial institution before opening a CD.
If you have questions or feedback, visit the contact page.