CD Rates Calculator
See exactly what a CD will pay. Enter your deposit, the APY, and the term in months to get the maturity value, the interest earned, and the effective annual yield.
How to use this calculator
- Enter deposit amount.
- Enter aPY.
- Enter term.
- Your results appear instantly below and update as you change the numbers.
How this calculator works
The calculator compounds interest monthly at the APY for the length of the term. At maturity you get back your deposit plus the interest earned. The effective annual yield matches the APY when compounding is factored in.
Frequently asked questions
What is a good CD rate in 2026?
Rates track the federal funds rate. In recent years top-yield online banks have offered CDs from around 3.5% to 5% APY while big-bank branches sit much lower. Compare APY, not the nominal rate, and watch for early-withdrawal penalties.
Are CD returns guaranteed?
Yes — CDs are insured up to $250,000 per depositor, per bank, by the FDIC (NCUA for credit unions). The APY is fixed for the term, so the maturity value is known in advance as long as you do not withdraw early.
Disclaimer: Results are estimates for general information only and do not constitute financial, tax, or legal advice. Figures reflect 2026 rules and may change. Always confirm current limits and consult a qualified professional before making decisions. Official figures: IRS.gov · 2026 limits per IRS tax inflation adjustments.