APY to interest calculator

Convert APY into estimated interest.

Enter a deposit amount, APY, and number of days to estimate the dollars earned over a short period.

Estimated interest
$18.15
$5,018.15Ending balance
$0.61Average per day
APYAnnualized yield

Enter an amount, APY, and number of days.

APY is annualized

APY is an annual yield number. A 30-day estimate is not simply APY divided by twelve in every case, but this tool gives a practical approximation using the APY over the selected time period.