Use our annual percentage yield (APY) calculator to determine the potential earnings or growth of an investment over a year.
Page written by Ashlyn Brooks. Last reviewed on May 19, 2025. Next review due October 1, 2027.
This calculator is intended for illustration purposes only and exact payment terms should be agreed with a lender before taking out a loan.
Annual Percentage Yield is a finance metric used by businesses to understand how much interest an investment or savings account will earn over time. Unlike a simple interest rate, APY considers the effects of compounding, providing a better picture of your actual earnings.
Our APY Calculator simplifies the process of estimating returns on savings and investments. Follow these steps to determine your APY:
APY, or Annual Percentage Yield, reflects the total interest earned on an investment or savings account over a year, considering the effects of compounding. The higher the compounding frequency, the greater the APY. This metric is useful for comparing financial products, as it gives a more accurate representation of potential earnings than a simple interest rate.
While Annual Percentage Rate (APR) and Annual Percentage Yield (APY) are related, they serve different purposes:
For example, if two savings accounts offer the same APR but one compounds interest daily and the other annually, the account with daily compounding will have a higher APY, leading to greater earnings.
APY is calculated using the following formula:
Where:
For example, if a savings account offers 2.32% APR with daily compounding (365 periods per year), the APY would be slightly higher than 2.32% due to the frequent application of interest.
You can calculate APY using Swoop’s APY Calculator to get quick and accurate results. Simply enter your interest rate, compounding frequency, and investment term to see your projected earnings.
APY helps businesses compare financial products the right way. Since it includes compounding, it gives a deeper picture of potential returns than a simple interest rate. This is especially useful when comparing savings accounts, fixed deposits, or investment opportunities.
APY is Yearly. APY is always expressed as an annual percentage, though the interest may be compounded daily, monthly, or at other intervals. The more frequently interest is compounded, the higher the APY.
The interest you earn on $10,000 depends on the APY and compounding frequency. if an account offers 0.61% APY, a $10,000 deposit would earn approximately $61 in interest over a year. On the other hand, a high-yield savings account with a 4.75% APY would have a higher return at $475 interest over the year it was earned.
Whether you’re saving for the future or comparing investment options, understanding APY can help you make smarter financial decisions. Try Swoop’s APY Calculator to see how your money can grow.
The APY Calculator is for informational purposes only and provides estimates based on the inputs provided. Actual earnings may vary depending on factors such as compounding frequency, account terms, and financial institution policies. This tool does not constitute financial advice, and users should consult with a financial professional or their bank to confirm exact interest calculations before making investment decisions. Swoop is not responsible for any discrepancies or financial decisions based on the calculator’s results.
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