Meaning of CALCULATION in English
/ ˌkælkjuˈleɪʃn; NAmE / noun
[ C , U ] the act or process of using numbers to find out an amount :
Cathy did a rough calculation.
By my calculation(s), we made a profit of £20 000 last year.
Our guess was confirmed by calculation.
[ C , U ] the process of using your judgement to decide what the results would be of doing sth
[ U ] ( disapproving ) careful planning for yourself without caring about other people :
an act of cold calculation
late Middle English : via Old French from late Latin calculatio(n-) , from the verb calculare , from calculus a small pebble (as used on an abacus).
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005