factor in

British  

verb

1. (tr, adverb) to take account of (something) when making a calculation

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factor in Idioms  

1. Figure in, include as a basic element. For example, In preparing the schedule we factored in vacation and sick days. This term comes from mathematics. [Mid-1900s]

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Example Sentences

Instead of spending a fixed inflation-adjusted dollar amount every year, you need to factor in your life expectancy and the size of your portfolio and then adjust accordingly.

From The Wall Street Journal • Jun. 23, 2026

In order to defeat a diversion request, the burden is on prosecutors to prove mental health issues were not a factor in the alleged crime.

From Los Angeles Times • Jun. 18, 2026

The overall market is probably a secondary factor in SpaceX trading.

From Barron's • Jun. 18, 2026

“The drop in the fee has gotten a lot of attention, but the cost of the form is the smallest factor in the decision,” said Dean Peterson, partner-in-charge at EisnerAmper International Tax Services.

From MarketWatch • Jun. 17, 2026

But you must, when you are calculating the odds of the mouses success, factor in his love for the princess.

From "The Tale of Despereaux: Being the Story of a Mouse, a Princess, Some Soup and a Spool of Thread" by Kate DiCamillo