CD Calculator
Calculate Certificate of Deposit (CD) maturity amount, total interest earned, and APY. Plan your fixed-term savings with compound interest projections and growth charts.
About This Calculator
The CD Calculator (Certificate of Deposit Calculator) helps you estimate the maturity amount, total interest earned, and effective annual percentage yield (APY) for fixed-term deposit accounts. Whether you are planning short-term savings or long-term investments, this tool provides accurate compound interest projections with monthly breakdowns and interactive charts. It is ideal for savers in the US (CDs), India (Fixed Deposits), and the UK (Fixed-Rate Bonds) who want to compare returns across different compounding frequencies and terms.
The calculator uses the standard compound interest formula: A = P × (1 + r/n)^(n×t), where A is the maturity amount, P is the initial deposit amount, r is the annual interest rate (APY), n is the number of compounding periods per year, and t is the term in years. The effective APY is calculated as (1 + r/n)^n - 1, which reflects the true annual return accounting for compounding. The monthly breakdown table shows your balance growth and cumulative interest at each compounding period.
Regional Notes
India: Certificates of Deposit are commonly called Fixed Deposits (FDs). Major banks offer 6.25%–7.50% for regular depositors and up to 8.00% for senior citizens. Interest is typically compounded quarterly. The default deposit is set to ₹1,00,000 with 6.5% APY for 3 years.
United States: CDs are offered by banks and credit unions with terms from 3 months to 5+ years. High-yield online banks currently offer 4.50%–5.25% APY on 1-year terms. Interest may compound daily, monthly, or quarterly. The default is set to $10,000 with 5.0% APY for 3 years.
United Kingdom: Known as Fixed-Rate Bonds or Term Deposits, these products offer 4.50%–5.25% for 1-year terms from leading providers. Interest typically compounds annually or monthly. The default is set to £5,000 with 5.0% APY for 3 years.
Frequently Asked Questions
What is a Certificate of Deposit (CD)?
A Certificate of Deposit (CD) is a fixed-term savings product offered by banks and credit unions. You deposit money for a set period — typically 3 months to 5 years — and earn a fixed interest rate that is usually higher than a regular savings account. In India, CDs are known as Fixed Deposits (FDs), while in the UK they are called Fixed-Rate Bonds or Term Deposits.
How does the CD calculator work?
The CD calculator uses the compound interest formula A = P × (1 + r/n)^(n×t) where P is your deposit amount, r is the annual interest rate (APY), n is the number of times interest compounds per year, and t is the term in years. It computes the maturity balance, total interest earned, and effective APY with monthly growth projections.
What is the difference between APY and APR?
APY (Annual Percentage Yield) reflects the total interest you earn in one year including the effect of compounding, while APR (Annual Percentage Rate) is the simple stated rate without compounding. For example, a CD with 5.00% APR compounded monthly earns an APY of approximately 5.12%. The calculator shows both the stated rate and the effective APY.
How does compounding frequency affect CD returns?
More frequent compounding increases your total returns. A ₹100,000 deposit at 6% for 3 years earns ₹19,405 with annual compounding, ₹19,562 with semi-annual compounding, ₹19,668 with quarterly compounding, ₹19,725 with monthly compounding, and ₹19,742 with daily compounding. The calculator lets you compare all five frequencies.
What are the current CD rates in the US?
As of 2025, US CD rates vary by term and bank. High-yield online banks offer approximately 4.50%–5.25% APY for 1-year CDs, 4.00%–4.75% for 3-year CDs, and 3.50%–4.25% for 5-year CDs. Traditional brick-and-mortar banks may offer lower rates. Always check current rates from FDIC-insured institutions.
What are the best CD rates in India?
In India, Fixed Deposit (CD equivalent) rates from major banks range from 6.50% to 7.50% for regular depositors and 7.00% to 8.00% for senior citizens as of 2025. SBI offers 6.25%–6.75%, HDFC offers 7.00%–7.50%, and smaller banks and NBFCs may offer higher rates. Senior citizens get an additional 0.50% on most tenures.
What are the top CD rates in the UK?
In the UK, fixed-rate bonds (CD equivalents) from leading providers offer approximately 4.50%–5.25% for 1-year terms, 4.00%–4.75% for 2-year terms, and 3.50%–4.25% for 5-year terms as of 2025. Rates are influenced by the Bank of England base rate. Online-only banks and building societies often provide competitive rates.
Is the CD calculator free to use?
Yes, this CD calculator is completely free to use with no registration required. You can save and share your calculation results via the URL, which preserves all your input values for easy reference.