How many days are in a month?

Month name Number of Days

Calculate Gas Mileage

Enter Beginning odometer in miles
Enter ending odometer in miles
Enter gallons used
Calculate MPG
Gas Mileage

Calculate wind chill

Wind Speed
Tempeture
Wind Chill

Calculate your slowest and fastest beneficial heart rate well exercising.

Enter your age
Calculate Rates
Slowest benificial rate
Fastest benificial rate