Translating cubic feet into laundry people actually do

On a search results page the brand's washer showed 4.5 cubic feet next to machines claiming 5.0 and 5.2. The shopper reads that as smaller and moves on. In practice the brand's drum geometry holds more usable laundry than at least two of those machines, because the published figure counts volume the agitator and the door recess make unusable — but there is no way to argue that in a spec line, and nobody would read it if there were.

The cost was double. The brand lost comparisons it deserved to win, and the customers who did buy had no expectation to measure the machine against, so reviews split between “bigger than I thought” and “I expected more” depending on which competitor's number they had in their head.

We stopped competing on the unit of measurement and started competing on the outcome it describes.

• Capacity photographed as loads — a king duvet, a week of washing for a family of four, a full set of bath towels, each shot in the actual drum.
• Load language in the copy and the title, so the listing describes what fits rather than how many cubic feet it technically encloses.
• A like-for-like comparison of usable versus published volume, shown as the same load in the same drum rather than as a claim about competitors.
• Campaigns aimed at load-sized intent — family-size, bedding and bulky-item phrasing, where the shopper is already thinking in the brand's unit rather than in cubic feet.

Conversion rose from 5.8% to 8.6% and revenue grew 59%, on a machine whose published capacity is still smaller than the competitors it beats.

ACoS fell nine points because the traffic now converts instead of bouncing to a bigger number. The rating gained half a point for a quieter reason: a customer who was shown a duvet going into the drum before they bought is not surprised by what fits afterwards.