calculate

verb

cal·​cu·​late ˈkal-kyə-ˌlāt 

calculated; calculating

transitive verb

1

a

: to determine by mathematical processes

calculate the rate of acceleration

b

: to reckon by exercise of practical judgment : estimate

calculate the likelihood of success

c

: to solve or probe the meaning of : figure out

trying to calculate his expression

—Hugh MacLennan

2

: to design or adapt for a purpose

he carefully calculated the timing of his arrival for maximum impact

3

a

: to judge to be true or probable

b

: intend

I calculate to do it or perish in the attempt

—Mark Twain

intransitive verb

1

a

: to make a calculation

b

: to forecast consequences

2

: count, rely

Synonyms

• cipher
• compute
• figure
• reckon
• work out

Examples of calculate in a Sentence

calculate the volume of a cylinder

I need to calculate how long it will take me to drive to Chicago.

We calculated the cost of new carpeting for the whole house.

We need to calculate our chances of success before we invest more money in the business.

Recent Examples on the Web

In that case, Freedom Debt Relief will calculate the overall amount of debt and develop an affordable plan to help pay off the loan and establish a healthy budget. —Jason Phillips, USA Today, 17 May 2025

Starting with simple approximations and systematically layering complexity, the researchers calculated key outcomes of black hole flybys: how much they are deflected, how much energy is radiated as gravitational waves and how much the behemoths recoil after the interaction. —Sharmila Kuthunur, Space.com, 16 May 2025

For example, The Times did not count the Crown Estate or the Duchy of Lancaster when calculating King Charles' current wealth. —Meredith Kile, People.com, 16 May 2025

This information is sent to a computer that rapidly calculates the distortion, then adjusts pistons behind a deformable mirror to reshape the reflective surface in a way to compensate for the twinkling. —Phil Plait, Scientific American, 15 May 2025

Word History

Etymology

borrowed from Late Latin calculātus, past participle of calculāre "to count, reckon, compute," derivative of Latin calculus "pebble, pebble used for calculating on a counting board, method or result of calculation" — more at calculus

Note: The verb may already have existed in Latin, to judge by the derivative calculātor—see calculator.

First Known Use

1542, in the meaning defined at transitive sense 1a

Rhymes for calculate

• abdicate
• abrogate
• acetate
• activate
• actuate
• adsorbate
• aggravate
• agitate
• alginate
• alienate
• allocate
• amputate

Kids Definition

calculate

verb

cal·​cu·​late ˈkal-kyə-ˌlāt 

calculated; calculating

1

: to find by performing mathematical operations (as addition, subtraction, multiplication, and division) : compute

calculate the average

2

: estimate entry 1 sense 1

calculate the risk of losing

3

: to plan by careful thought

a program calculated to succeed

Etymology

from Latin calculatus "calculate," derived from calculus "pebble (used in counting)," from calc-, calx "stone used in gambling, lime" — related to calcium, chalk