Cost Per Wear: The Only Clothing Maths That Matters
The price on the tag is the least useful number about a garment. It tells you what you paid. It tells you nothing about what it was worth.
Cost per wear tells you the second thing, and the second thing is the one that matters.
The formula is not clever:
What you paid, divided by the number of times you wore it.
That is it. No app required to do the arithmetic. What is hard is the second number, because almost nobody knows it.
The number nobody has
Ask someone what they paid for their coat and they will usually remember. Ask how many times they have worn it and you get a shrug.
This is the whole problem. We track the cost precisely and the value not at all, then wonder why the wardrobe fills up with things that felt like good decisions.
Two coats:
- Coat A, £45, worn 6 times in two winters. £7.50 per wear.
- Coat B, £220, worn 90 times across four winters. £2.44 per wear.
Coat B cost nearly five times as much and was a third of the price. The tag had it exactly backwards.
Where it gets uncomfortable
Run the numbers on the things you already own and it stops being a shopping tool and starts being a mirror.
The dress bought for one wedding: £90, worn once, £90 per wear. The jeans you actually live in: £60, worn maybe 200 times by now, 30p per wear and falling every week.
Most wardrobes contain a handful of items doing nearly all the work at pennies per wear, and a long tail of expensive mistakes sitting at £20, £50, £90 each. The tail is where the money went. It is almost never where the clothes you like are.
What it changes about buying
Once you think in cost per wear, three things follow, and none of them are "buy expensive things".
The question stops being "can I afford this" and becomes "will I wear this fifty times". Fifty is a useful threshold. It is roughly once a week for a year, or twice a week for a season. If you cannot picture fifty specific occasions, you are not buying a garment, you are buying a feeling.
Occasion-wear is exposed for what it is. A £90 dress worn once is not a bad purchase because it was expensive. It is a bad purchase because it was bought instead of borrowed, rented or found secondhand. Cost per wear is the argument for renting, not against nice things.
Cheap becomes expensive. A £12 top that survives four washes has a worse cost per wear than a £70 one worn for six years. This is the part the maths does that instinct does not.
The environmental version of the same sum
The same arithmetic runs on carbon, and it lands harder.
A garment's footprint is mostly paid at manufacture, before you ever wear it. The water, the dye, the energy, the transport. That cost is fixed the moment the thing exists. The only variable left is how many wears you divide it by.
WRAP, the UK waste and resources body, put a number on this: extending the active life of clothing by just nine extra months cuts its carbon, water and waste footprint by around 20 to 30 per cent. They identify it as the single largest opportunity to reduce the footprint of clothing in the UK. Not better materials. Not recycling. Wearing what exists for longer.
Nine months. That is one more winter in the same coat.
The bit where Vestis comes in
Cost per wear needs the wear count, and the wear count is the number nobody has.
Vestis catalogues what you own and tracks what you actually wear, so the second number stops being a shrug. It shows you which pieces are doing the work, which have not been touched in six months, and what a garment has genuinely cost you per outing. It is a wardrobe app for people who already have enough clothes, and its whole point is to help you stop buying, not start.
Try it on three things tonight
Do not audit the whole wardrobe. Pick three:
- The most expensive thing you own. Divide by honest wears. Sit with the result.
- The thing you wear most. Watch the number drop to almost nothing. That is what a good buy looks like.
- The thing still on its hanger with the tag on. Its cost per wear is undefined, because you cannot divide by zero. That is the maths telling you something.
Then leave it alone. The point is not to feel bad about the tail. The point is that you now know which three things to buy more like, and which not to buy again.
You do not own clothes. You own wears. Everything else is storage.