Calculator based on the given air temperature, dew point and barometric pressure are calculated virtual temperature. This is the temperature damages that powinnoby have dry air to its density at the same pressure is equal to the density of moist air.              

Calculator based on the price quoted for the package and the amount consumed per month package, gives the annual cost of smoking cigarettes.

Calculator allows the conversion of fuel combustion km / h on U.S. MPG (Miles per Gallon) and vice versa.                      

For a given date of birth calculator calculates the corresponding Western and Chinese astrological sign (zodiac).