Financial Calculators

CD Rates Calculator

Calculate the future balance, earned interest, and Annual Percentage Yield (APY) for Certificates of Deposit (CD). Plan your fixed-income returns.

Reviewed by David Miller, CPA (CPA, M.S. Finance (NYU Stern))

Verified for accuracy•Updated 2026

Interactive Calculator

1. Provide Details

Deposit Principal ($)

Interest Rate (%)

CD Term (months)

Compounding Frequency

2. Output Results

Maturity Value10459.40 $

Total Interest Earned459.40 $

Annual Percentage Yield (APY)4.594 %

How to Calculate: Formula & Steps

Uses the compound interest formula where P is principal, r is annual nominal rate, n is compounding periods per year, and t is term in years.

Formula Used:A = P * (1 + r/n)^(n*t)

Step-by-Step Calculation Example

Deposit of $10,000 for 1 year at 5% interest compounded monthly returns $10,511.62.

Common Mistakes to Avoid

Withdrawing funds early, which usually results in an early withdrawal penalty that reduces your interest earned.

Practical Use Cases

Fixed income planning
Comparing bank rates
Retirement savings allocation

Expert Tips

If inflation is high, lock in shorter terms to avoid having your purchasing power eroded over long periods.

Disclaimer

This calculation tool is provided for educational and informational estimation purposes only. Results are based on mathematical formulas and user-supplied parameters. They do not constitute formal underwriting, financial, tax, engineering, or legal determinations.