Calculate meaning
Calculating the team's chances of winning.
If you think carefully about how to proceed in a negotiation, this is an example of when you calculate your next move.
If you add 2+2 and get 4, this is an example of when you calculate.
To calculate or cast one's nativity.
To calculate a system of laws for the government and protection of a free people.
We must measure and calculate to determine how much paint will be needed.
Calculating the area of a circle; calculated their probable time of arrival.
A sturdy car that is calculated to last for years; a choice that was calculated to please.
A tale calculated to mislead us.
Calculate the square root of 3 to 10 decimal places.
Origin of calculate
 Late Latin calculāre calculāt from Latin calculus small stone used in reckoning diminutive of calx calc small stone for gaming calx
From American Heritage Dictionary of the English Language, 5th Edition

From Wiktionary