calculation vs computing

calculation and computing both are nouns.

Word	Noun	Adjective	Verb	Adverb
calculation	Yes	No	No	No
computing	Yes	No	No	No

As nouns, calculation and computing are synonyms defined as:

calculation and computing: the procedure of calculating; determining something by mathematical or logical methods

Other synonyms of calculation include computation.

calculation (noun)	computing (noun)
the procedure of calculating; determining something by mathematical or logical methods	the procedure of calculating; determining something by mathematical or logical methods
problem solving that involves numbers or quantities	the branch of engineering science that studies (with the aid of computers) computable processes and structures
planning something carefully and intentionally