—v.t. 1. to determine or ascertain by mathematical methods; compute: to calculate the velocity of light. 2. to determine by reasoning, common sense, or practical experience; estimate; evaluate; gauge.
3. to make suitable or fit for a purpose; adapt (usually used passively and with an infinitive): His remarks were calculated to inspire our confidence. 4. Chiefly Northern U.S. a. to think; guess.
b. to intend; plan.
—v.i. 1. to make a computation or form an estimate.
2. to count or rely (usually fol. by on or upon): They calculated on good weather.