Latte Factor Calculator
Turn a small daily habit into its long-term price — what your coffee, snack or app spend would grow to if invested over the years.
How it works
Monthly = cost × days/week × 52 ÷ 12 · FV = monthly × ((1 + r/12)^(years×12) − 1) ÷ (r/12)
The "latte factor" is the idea that small, habitual purchases quietly add up to real money over a lifetime. This calculator converts a daily treat into its annual cost and then into the portfolio it could become if invested. It is not an argument against ever buying coffee — it is a way to see the long-run scale of any recurring small expense.
Worked example
A $5 coffee bought 5 days a week is about $1,300/year. Over 30 years that is roughly $39,000 spent; invested at 7% along the way, the same money would grow to about $132,000.
Frequently asked questions
Does skipping coffee really make me rich?
Not on its own — the latte is a stand-in for any recurring small expense. The lesson is that habitual spending compounds; redirecting some of it to investments over decades produces meaningful sums, but big wins usually come from bigger levers like housing and income.
Why is the invested figure so much larger than what I spent?
Because each contribution earns a return that itself earns returns. Over 20–30 years, compounding can more than triple the raw amount you put in, which is why the invested total dwarfs the cash spent.
Should I cut out all small pleasures?
No. The healthier use of this number is to spend intentionally — keep the treats you truly value and trim the ones you barely notice, then invest the difference.
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Educational estimate, not financial advice.