The Wacoal Japan Size Chart, Interactive
Wacoal Japan charts to JIS L 4006 on centimeter bands 65 to 90, cups A to I: the home-market grid of a group that runs entirely different sizing philosophies on other continents under the same name.
Every Wacoal Japan size: tap for conversions
Wacoal America and Wacoal Europe publish different charts under the same brand: this is the Japanese original.
Your size at Wacoal Japan
Same published math as the calculator (snug measure, no +4) then translated into Wacoal Japan’s native notation and checked against the real chart above, which lights up your cell.
How Wacoal Japan sizing reads
JIS bands match European centimeter numbering exactly; JIS letters run one position deeper than Western letters, so the JP row in each drawer is the label you'd see in a Tokyo store. If you know your Wacoal size from another continent, don't carry it here: the three regional Wacoals size independently.
How Wacoal Japan runs
Full fit notes, style guidance and comparisons live on the Wacoal Japan brand page.
Where this chart ends
Wacoal's Western ranges live on the Wacoal page; JIS neighbours are Triumph Japan and Peach John. Symptoms decode at the fix guides.
Wacoal Japan sizing: answered
Does Wacoal Japan run true to size?
Band: Bands run true to size: start with your measured band on the loosest hook. Cup: Cups grade small: try your measured cup and one up. In one line: regional Wacoals size independently: a US Wacoal size does not transfer to this Japanese grid.
What sizing system does Wacoal Japan use?
Native European sizing. JIS bands match European centimeter numbering exactly; JIS letters run one position deeper than Western letters, so the JP row in each drawer is the label you'd see in a Tokyo store. If you know your Wacoal size from another continent, don't carry it here: the three regional Wacoals size independently. The interactive chart above shows every size with its US, UK, EU and FR equivalents.
What sizes does Wacoal Japan carry?
65–90 bands with A–I cups in European notation. 54 sizes in the core chart. Wacoal America and Wacoal Europe publish different charts under the same brand: this is the Japanese original.
What if Wacoal Japan doesn't make my size?
Wacoal's Western ranges live on the Wacoal page; JIS neighbours are Triumph Japan and Peach John. Symptoms decode at the fix guides. Sister sizes (same volume, different band) sometimes bridge a one-band gap: the calculator above tries them automatically before giving up.
Opens HauteFlair’s own hub page; use your measured size there. HauteFlair is owned by the same company as Brasize.ai; that relationship never changes the sizing math, charts, or fit advice on this page. How this site makes money.
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Two measurements, no inches added, sister sizes attached.
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