[ kal-kyuh-ley-shuh n ]
/ ˌkæl kyəˈleɪ ʃən /


the act or process of calculating; computation.
the result or product of calculating: His calculations agree with ours.
an estimate based on the known facts; forecast: Her calculation of the building costs proved quite accurate.
forethought; prior or careful planning.
scheming selfishness.

Origin of calculation

1350–1400; Middle English < Late Latin calculātiōn- (stem of calculātiō reckoning). See calculate, -ion
Related formscal·cu·la·tive [kal-kyuh-ley-tiv, ‐luh-tiv] /ˈkæl kyəˌleɪ tɪv, ‐lə tɪv/, cal·cu·la·tion·al, cal·cu·la·to·ry [kal-kyuh-luh-tawr-ee, ‐tohr-ee] /ˈkæl kyə ləˌtɔr i, ‐ˌtoʊr i/, adjectivenon·cal·cu·la·tive, adjectivepre·cal·cu·la·tion, nounun·cal·cu·la·tive, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for calculation

British Dictionary definitions for calculation


/ (ˌkælkjʊˈleɪʃən) /


the act, process, or result of calculating
an estimation of probability; forecast
careful planning or forethought, esp for selfish motives
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for calculation



late 14c., from Late Latin calculationem (nominative calculatio), noun of action from past participle stem of calculare "to reckon, compute," from Latin calculus "reckoning, account," originally "pebble used in counting," diminutive of calx (genitive calcis) "limestone" (see chalk (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper