The phrase " girl math" is an internet meme, used to describe rationalizations by young women to justify or make sense of individual purchases or spending habits.

Mar 31, 2025 · But what does girl math actually mean? We’ll give you a complete breakdown of girl math’s ~official rules~, the social commentary around them, and how “boy math” got brought into the …

Girl math is a trending phenomenon that emerged on TikTok and is used to describe the way girls justify their spending habits. “Girl math” is used as a humorous way to rationalize seemingly intricate and …

Jul 14, 2025 · “Girl Math” is an online trend where women playfully twist financial logic to justify their shopping. It’s about making purchases seem like a win, even if the numbers don’t quite add up.

Sep 14, 2025 · A good deal of girl math revolves around redefining what it means to "get something for free," as you'll notice while scrolling through this list.

May 19, 2025 · At the heart of Girl Math lies mental accounting, a term coined by behavioral economist Richard Thaler (1985). It describes how people compartmentalize finances into “budgets” — often …

Sep 8, 2023 · Girl math is a term coined to describe the unique (and illogical) mathematical reasoning applied by young women. It emerged on social media in July 2023, after a group of New Zealand …

Aug 16, 2023 · This is an actual example of girl math that economist Brad Olsen evaluated on the New Zealand radio show Fletch, Vaughan & Hayley. His conclusion? "Girl math is OK here," he told the …

Sep 25, 2023 · We've all justified unnecessary purchases before, but now social media has labeled the habit as "girl math." So, what exactly is it? You may have seen the videos popping up online, or …

Aug 12, 2023 · TikTok's latest trend aims to reframe the narrative around luxury indulgences. "Girl math" breaks down the price of an item by the cost per wear.