How do I calculate cost per wear?

Divide the true lifetime cost by realistic total wears: price grown at your investment return over the years it serves, plus upkeep, minus honest resale. A $300 coat worn 40 times a year for 5 years is about $2 per wear; at 8 wears a year it's $10–12 — the denominator's honesty is the whole formula.

What is a good cost per use?

One below your real alternative: the rental price, taxi fare, or café espresso. An espresso machine at $0.60 a cup beats the café; a $200-per-wear gown loses to a $90 rental — unless the occasion is priceless, which is a valid answer once said out loud.

Does cost per wear justify buying expensive items?

Only when the use is honest. The formula rewards things used often and long — quality boots, an everyday bag — and exposes aspirational buys the moment realistic wears replace planned wears. Track one season of actual use before trusting a large denominator.

Cost Per Use Calculator — The Honest Cost-Per-Wear Formula

What one use is made of

The per-use ledger

The denominator is everything

Cost per use at every level of real use — the boutique’s dashed line assumed the top of the curve. The dot is your honest number. Hover to explore.

Three honesty levels about use

Using the number well

How we calculate

What is included

The honest cost per use takes the price and grows it at your return assumption over the piece’s life (money in a coat missed the market), adds each year’s upkeep grown the same way, subtracts the resale value at the end — and divides by realistic total uses. The naïve figure — price divided by uses — is shown beside it, because that’s the one printed on the shopping-justification napkin.

What is estimated or left out

Per-use arithmetic suits things bought to be used; heirlooms, gifts, and pure-joy purchases answer to a different desk entirely. The formula also can’t see quality differences except through the years you give it — a doubled price with tripled service life is a bargain, and this page will say so only if you tell it the years honestly. Rental comparisons vary wildly by category; bring your real local price.

The formula, in plain words

uses    = uses per year × years
naïve   = price ÷ uses                (the boutique’s version)
honest  = (price×(1+r)^years − resale + upkeep, grown) ÷ uses
break-even vs the alternative: uses where honest = per-use price

Common questions

How do I calculate cost per wear?: The honest version: purchase price grown at your investment return over the garment’s life, plus upkeep, minus realistic resale — divided by wears you’ll actually log. A $300 coat worn 40 times a year for 5 years lands near $2 a wear honestly counted; the same coat worn 8 times a year is $10–12. Same coat, different honesty.
What’s a good cost per use?: Compare it with the alternative, not a universal number: the rental price, the taxi fare, the café espresso. An espresso machine at $0.60 a cup beats the café at any income; a $200-per-wear gown loses to rental unless the occasions are priceless — which is allowed, once it’s admitted out loud.
Doesn’t cost per wear just justify expensive things?: It’s a fine tool and a famous excuse; the difference is one input. The formula rewards things genuinely used often and long — good boots, the everyday bag, the daily-driver tool — and exposes aspirational purchases the moment realistic use replaces planned use in the denominator.

Cost Per Use