What scrolling leads you to spend each year.

Social media platforms are designed for engagement, and purchases driven by platform exposure are a measurable consequence. Research on Instagram specifically finds users spend 10-25% more discretionary budget on categories heavily featured in their feed (fashion, travel, beauty, tech). TikTok's "TikTok Made Me Buy It" hashtag has over 80 billion views — these aren't accidental impulses, they're the platform working as designed.

Three mechanisms drive platform-triggered spending. Envyseeing what peers have creates desire to match. Targeted advertisingplatforms surface products specifically matched to your browsing history. Aspirational contentinfluencer lifestyles create reference points that feel normal even when objectively elite.

The annual cost is often surprising. Moderate social media users frequently spend 100-300 a month on platform-triggered purchases. Over 10 years at 7% opportunity cost, that's 18,000-54,000 in compound foregone wealth. The trade-off isn't entirely bad (some purchases genuinely bring joy), but it deserves to be conscious rather than passive.

How to use it

Self-audit: over the last month, which discretionary purchases happened specifically because something you saw on social media triggered them? Estimate that monthly figure, how long the pattern has been active, and your planning horizon. The tool produces annual cost and compound opportunity cost.

What the result means

The monthly figure shows direct platform-driven spending. The compound figure shows what the same money invested instead would become over your horizon. Neither number says you shouldn't use social media or buy things you enjoy — it simply makes the economic cost of the pattern visible.

Educational behavioural tool. Not financial advice.

Quick example

With monthly social-driven spending of 150 and years to project of 10 (plus alternative investment return of 7%), the result is 25,962.72. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.

Which inputs matter most

You enter Monthly Social-Driven Spending, Years to Project, and Alternative Investment Return. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.

What's happening under the hood

Future value of monthly annuity over the horizon at the given return rate. Cumulative spending shown separately so the compound growth portion is visible. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.

Reading the result without judgement

The figure isn't a scorecard. It's a prompt — something to sit with for a few days before deciding whether any habit needs changing. Reflexive reactions ("I need to cut everything") usually don't last; considered ones do.

What this doesn't capture

Behaviour-adjacent math is always an approximation. Human habits are lumpy and context-dependent; the figure here assumes steady behaviour which is a simplification. Treat the output as a prompt for thinking rather than a precise prediction.