¿What is the temperature increment conversion of 21 degrees Farenheit in Kelvin?

A change of 21 degrees Farenheit corresponds to a change of 11.666667 Kelvin.

Twenty-one degrees Farenheit equals to two hundred sixty-seven Kelvin. *Approximately

A temperature change of twenty-one degrees Farenheit equals to a change of eleven Kelvin. *Aproximado