CD Calculator (mycdcalc.com) is a free, privacy-first financial tool designed to help savers estimate CD maturity values, APY compounding, and after-tax returns. Without requiring registration or data sharing, the calculator lets users test various deposit amounts, terms, and compounding frequencies (daily, monthly, quarterly). It includes specialized calculators for CD ladders, early withdrawal penalties, taxes, and monthly payouts, enabling users to optimize their savings strategies and compare rates across major US banks.