CD Calculator

Last updated July 2, 2026

Certificates of Deposit lock in a fixed interest rate for a defined term in exchange for restricted access — withdrawing early typically triggers a penalty of 60 to 180 days of interest, depending on the CD term and institution. In 2026, competitive CD rates range from 4.0 to 4.75 percent APY depending on term length, with some institutions offering promotional rates above 5 percent for specific durations. CDs are FDIC-insured up to $250,000 per depositor per institution, making them effectively risk-free for amounts within that limit, while earning meaningfully more than typical savings account rates at most banks.

CD laddering is the strategy of spreading a fixed sum across multiple CDs with staggered maturities — for example, equal amounts in 6-month, 1-year, 18-month, 2-year, and 3-year CDs. As each rung matures, the proceeds are reinvested into a new CD at the top of the ladder. The ladder provides regular liquidity windows without sacrificing the higher rate available on longer terms, and it insulates against both interest rate risk (you're not fully committed at any one rate) and reinvestment risk (you're not waiting for the entire sum to mature at once). CD calculators help compare the total interest earned at different rate and term combinations against each other and against HYSA rates, making the trade-off between liquidity and yield explicit.

Using CDs for money you know you won't need for a defined period — capital earmarked for a home purchase in 18 months, a car replacement fund with a two-year runway, or a portion of a retiree's short-term reserves. Compare the CD's APY to competitive HYSA rates over the same period, accounting for any early withdrawal penalty. For truly liquid money needed on short notice, the HYSA typically wins; for money with a predictable timeline, the CD often offers a rate premium worth locking in.