kph vs kilometers per hour

kph and kilometers per hour both are nouns.

Word	Noun	Adjective	Verb	Adverb
kph	Yes	No	No	No
kilometers per hour	Yes	No	No	No

As nouns, kph and kilometers per hour are synonyms defined as:

kph and kilometers per hour: the ratio of the distance traveled (in kilometers) to the time spent traveling (in hours)

Other synonyms of kph include kilometres per hour, km/h.

kph (noun)	kilometers per hour (noun)
the ratio of the distance traveled (in kilometers) to the time spent traveling (in hours)	the ratio of the distance traveled (in kilometers) to the time spent traveling (in hours)