
If you’ve ever calculated cost per wear to justify the price of an expensive dress, or felt like you’ve made a profit after returning an ill-fitting pair of jeans, you might be an expert in “girl math”. With videos about the topic going viral on social media, girl math might seem like a silly (or even sexist) trend, but it actually tells us a lot about the relationship between gender, money and emotions.
Girl math introduces a spend classification system: purchases below a certain value, or made in cash, don’t “count”. Psychologically, this makes low-value spending feel safe and emphasises the importance of the long-term value derived from more expensive items. For example, girl math tells us that buying an expensive dress is only “worth it” if you can wear it to multiple events.