What should be the conversion of temperature in Kelvin K from Celsius Degree Celsius in oracle appl

hello friends hope you all are ok,let us consider the case i have an item whose unit of measure (UOM) is any scale of temperature say degree centigrade , degree Fahrenheit, kelvin so for this after defining an item i have also define its UOM as Degree Centigrade , Degree Fahrenheit , Kelvin and kept them in the Temperature (UOM Class),i have also taken the Degree centigrade as the base unit...
so while i am given concersion from farahite to the Centigrade , so according to scietific relation  C / 5 = (F - 32 ) / 9 and after solving i have found
Degree Fahrenheit = 33.8  * degree centigrate ( the actual convesion of faranhite when degree celsius is equal to 1 degree )