APY (Annual Percentage Yield) combines a nominal annual rate with the number of compounding periods in a year to produce an effective annual yield. This page also shows what one principal amount becomes after one year, the interest earned, the compounding effect, and an equivalent monthly yield.
It is useful for comparing the rate convention of savings, CDs, or other fixed-yield offers. It answers “how much does compounding change a one-year result?” It is not a bank quote engine and does not load product-specific fees, taxes, or historical rates.
5% into an effective annual yield.Principal controls the scale of the currency results, not the APY percentage. The model treats it as one deposit at the start of the year and does not add monthly contributions.
Enter 5 for a nominal annual rate of 5%. In the formula this is r = 0.05; it is not already adjusted for compounding.
The nominal rate is the quoted base rate; APY converts it using the number of compounding periods in a year.
The current component is a one-year, single-deposit comparison model, not a multi-year or contribution forecast.
No. The page converts APY using the equivalent-compounding relationship.
No. Use the product terms for taxes, fees, minimum balances, and rate changes.
Estimate one-year APY, total return, interest, compounding effect, and monthly-equivalent yield from principal, nominal rate, and frequency; fees, taxes, deposits, and rate changes are excluded.