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A Certificate of Deposit (CD) calculator projects the final value and interest earned when you deposit a lump sum at a fixed interest rate for a set term. CDs are FDIC-insured and offer guaranteed returns — higher rates than savings accounts in exchange for locking up funds.

단계별 가이드

1. 1Final value = Principal × (1 + r/n)^(n×t)
2. 2r = annual interest rate, n = compounding periods per year, t = years
3. 3Most CDs compound daily or monthly
4. 4Withdrawing early incurs a penalty (typically 3–12 months of interest)

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