APY Calculator
Calculate APY from nominal rate and compounding frequency. Compare savings returns daily monthly quarterly annual compounding with charts and breakdown.
About This Calculator
The APY Calculator helps you compute the Annual Percentage Yield (APY) on savings accounts, fixed deposits, certificates of deposit, and other interest-bearing investments. APY is the effective annual rate of return that accounts for compound interest, giving you a true picture of how your money grows over one year. This tool is essential for savers, investors, and anyone comparing deposit accounts across different banks and financial institutions. By standardizing returns through APY, you can make apples-to-apples comparisons between accounts with different compounding frequencies.
APY is calculated using the formula APY = (1 + r/n)^n - 1, where r is the nominal annual interest rate (as a decimal) and n is the number of compounding periods per year. For example, a 5% nominal rate compounded monthly yields an APY of 5.12%, while the same rate compounded daily yields 5.13%. The more frequently interest compounds, the higher the effective return. This calculator also supports optional initial deposit and term inputs, allowing you to project the final balance and total interest earned over any investment horizon — from short-term savings to long-term deposits.
Regional Notes: In India, savings accounts typically earn 2.7-4.0% APY with monthly compounding, while fixed deposits offer 3.5-7.25% APY. Small finance banks may offer higher rates up to 7% on savings. The DICGC insures deposits up to ₹5 lakhs per bank. In the United States, high-yield savings accounts offer 3.8-4.5% APY with daily compounding being the standard, and certificates of deposit range from 4.0-5.0% APY. FDIC insurance covers up to $250,000 per depositor. In the United Kingdom, easy-access savings accounts offer 4.0-5.0% APY, with cash ISAs providing tax-free returns. The FSCS protects up to £85,000 per institution. Always verify current rates with your financial institution as APY rates change with central bank policy decisions.
Frequently Asked Questions
What is APY?
APY stands for Annual Percentage Yield. It is the effective annual rate of return that accounts for compound interest. APY = (1 + r/n)^n - 1, where r is the nominal interest rate and n is the number of compounding periods per year. APY is always greater than or equal to the nominal rate when compounding frequency is more than once per year.
What is the difference between APR and APY?
APR (Annual Percentage Rate) is the simple annual interest rate that does not account for compounding. APY (Annual Percentage Yield) includes the effect of compounding. For the same nominal rate, APY is higher than APR when compounding occurs more than once per year. APY is used for savings accounts and investments, while APR is typically used for loans and credit cards.
How does compounding frequency affect APY?
More frequent compounding results in a higher APY. Daily compounding yields the highest APY, followed by weekly, monthly, quarterly, semi-annual, and annual compounding. At a 5% nominal rate: daily compounding yields 5.13% APY, monthly yields 5.12%, quarterly yields 5.09%, and annual compounding yields 5.00%. The difference between compounding frequencies grows larger at higher interest rates.
What are typical APY rates for savings accounts in India?
Indian savings accounts typically offer 2.7% to 4.0% APY depending on the bank. Small finance banks offer up to 7% APY on savings accounts. Fixed deposits in India range from 3.5% to 7.25% APY based on tenure and bank. The DICGC insures up to ₹5 lakhs per depositor per bank in India.
What are typical APY rates in the United States?
US high-yield savings accounts offer 3.8% to 4.5% APY. One-year certificates of deposit range from 4.0% to 5.0% APY. Money market accounts offer 3.5% to 4.25% APY. Rates track the Federal Reserve benchmark rate. The FDIC insures deposits up to $250,000 per depositor per bank in the United States.
What are typical APY rates in the United Kingdom?
UK easy-access savings accounts offer 4.0% to 5.0% APY. One-year fixed-rate bonds range from 4.5% to 5.25% APY. Cash ISAs offer 4.0% to 5.0% tax-free APY. Rates track the Bank of England base rate. The FSCS protects up to £85,000 per person per financial institution in the UK.
How is APY calculated?
APY is calculated using the formula APY = (1 + r/n)^n - 1, where r is the nominal annual interest rate expressed as a decimal, and n is the number of compounding periods per year. For example, a 5% nominal rate compounded monthly gives APY = (1 + 0.05/12)^12 - 1 = 0.05116 = 5.12%. Enter your nominal rate and compounding frequency into this calculator to get the APY instantly.
What is a good APY for a savings account?
A good APY is one that is higher than the national average rate for your country. In the US, look for high-yield savings accounts offering 3.5% or more APY. In India, savings accounts above 3.5% APY are competitive. In the UK, easy-access accounts offering 4% or more APY are considered good. Always compare APY across institutions as it standardizes the return including compounding effects.