calculatev. i.[L, calculatus, p. p. of calculate, fr. calculus a pebble, a stone used in reckoning; hence, a reckoning, fr. calx, calcis, a stone used in gaming, limestone. See Calx.]1. To ascertain or determine by mathematical processes, usually by the ordinary rules of arithmetic; to reckon up; to estimate; to compute.()A calencar exacity calculated than any othe. (North.)2. To ascertain or predict by mathematical or astrological computations the time, circumstances, or other conditions of; to forecast or compute the character or consequences of; as, to calculate or cast one's nativity.()A cunning man did calculate my birth. (Shak.)3. To adjust for purpose; to adapt by forethought or calculation; to fit or prepare by the adaptation of means to an end; as, to calculate a system of laws for the government and protection of a free people.()[Religion] is . . . calculated for our benefit. (Abp. Tillotson.)4. To plan; to expect; to think.()(Crabb.)v. i. To make a calculation; to forecast consequences; to estimate; to compute.()The strong passions, whether good or bad, never calculate. (F. W. Robertson.)