verb, -lat⋅ed, -lat⋅ing.| 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.
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| 5. | to make a computation or form an estimate. |
| 6. | to count or rely (usually fol. by on or upon): They calculated on good weather. |