Habit Cost Calculator (Daily Habits, Compounded)

The compounding of small habits

Yearly cost = Price × times per week × 52 — then compounding does the rest

A $6.50 weekday coffee: $1,690/year, $16,900 per decade flat — but invested at 7%, about $24,000 in 10 years and $165,000 over 30. A pack-a-day smoker at $9: $3,285/year, and roughly $321,000 of foregone 30-year wealth (before counting health and insurance costs).

The honest version of the "latte factor"

The famous argument oversells one side: cutting the latte only builds wealth if the freed money is actually redirected — savings by subtraction evaporates into general spending. And small pleasures have real value; a $1,690/year habit that anchors your morning may be excellent spending. The point of this calculator is informed consent: know the 30-year price tag, keep the habits that are worth it, and automate the redirected cash from the ones that are not — a transfer on payday, sized by the savings goal calculator.

Highest-yield habit audits

Ranked by typical yearly cost: daily smoking/vaping ($2,500–4,000), regular food delivery ($2,000–5,000 including fees and markups), daily bought lunch ($2,500+ vs $800 packed), bar rounds ($1,500–4,000), bottled water ($300–500 vs ~$0 filtered). Delivery apps are the modern latte factor — the 30–100% markup over menu prices compounds the same way.