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Wacoal America bra sizes: chart, conversions and sister sizes
Wacoal America labels its bras in US sizes. Here is the size range recorded in the Cherry Size catalogue, its equivalents in EU, FR, UK and JP sizing, and the closest sister size when a size falls outside that range. Wacoal labels its bras by market: Wacoal Europe, which sells Wacoal bras in the UK, uses UK sizes, and in Japan, Wacoal uses Japanese sizes, cup letter first (C70); this page covers Wacoal America. With a UK label, read the UK column of the tables below.
- Label system
- US sizese.g. 34C
- Bands
- 30–46EU/JP 65–105 · FR 80–120
- Largest cup
- IEU/FR/JP I · UK G
How US sizes work
A US size is a band number and a cup letter. The band is an inch-based label (30, 32, 34…) shared with UK sizes. After D, most US brands go DD, DDD, G, H, I, J (some write DDDD for G, and a US G is a UK F), where UK cups go DD, E, F, FF, G, GG, H, HH, J. EU and French sizes number the band differently: a US 34 band is 75 in EU sizes and 90 in French sizes.
The Wacoal America size range
In the Cherry Size catalogue: bands 30–46 (US) and cups up to I. The tables start at cup A. A given style can come in fewer sizes: check its product page.
| US/UK | EU/JP | FR | Underbust (cm) | Underbust (in) |
|---|---|---|---|---|
| 30 | 65 | 80 | 62.5–67.5 | 24.6–26.6 |
| 32 | 70 | 85 | 67.5–72.5 | 26.6–28.5 |
| 34 | 75 | 90 | 72.5–77.5 | 28.5–30.5 |
| 36 | 80 | 95 | 77.5–82.5 | 30.5–32.5 |
| 38 | 85 | 100 | 82.5–87.5 | 32.5–34.4 |
| 40 | 90 | 105 | 87.5–92.5 | 34.4–36.4 |
| 42 | 95 | 110 | 92.5–97.5 | 36.4–38.4 |
| 44 | 100 | 115 | 97.5–102.5 | 38.4–40.4 |
| 46 | 105 | 120 | 102.5–107.5 | 40.4–42.3 |
| US | EU/FR/JP | UK | Bust − underbust (cm) | Bust − underbust (in) |
|---|---|---|---|---|
| A | A | A | 8.75–11.25 | 3.4–4.4 |
| B | B | B | 11.25–13.75 | 4.4–5.4 |
| C | C | C | 13.75–16.25 | 5.4–6.4 |
| D | D | D | 16.25–18.75 | 6.4–7.4 |
| DD | E | DD | 18.75–21.25 | 7.4–8.4 |
| DDD | F | E | 21.25–23.75 | 8.4–9.4 |
| G | G | F | 23.75–26.25 | 9.4–10.3 |
| H | H | FF | 26.25–28.75 | 10.3–11.3 |
| I | I | G | 28.75–31.25 | 11.3–12.3 |
Common Wacoal America sizes in other systems
| US | EU | FR | UK | JP |
|---|---|---|---|---|
| 32A | 70A | 85A | 32A | A70 |
| 32B | 70B | 85B | 32B | B70 |
| 32C | 70C | 85C | 32C | C70 |
| 32D | 70D | 85D | 32D | D70 |
| 32DD | 70E | 85E | 32DD | E70 |
| 32DDD | 70F | 85F | 32E | F70 |
| 34A | 75A | 90A | 34A | A75 |
| 34B | 75B | 90B | 34B | B75 |
| 34C | 75C | 90C | 34C | C75 |
| 34D | 75D | 90D | 34D | D75 |
| 34DD | 75E | 90E | 34DD | E75 |
| 34DDD | 75F | 90F | 34E | F75 |
| 36A | 80A | 95A | 36A | A80 |
| 36B | 80B | 95B | 36B | B80 |
| 36C | 80C | 95C | 36C | C80 |
| 36D | 80D | 95D | 36D | D80 |
| 36DD | 80E | 95E | 36DD | E80 |
| 36DDD | 80F | 95F | 36E | F80 |
| 38A | 85A | 100A | 38A | A85 |
| 38B | 85B | 100B | 38B | B85 |
| 38C | 85C | 100C | 38C | C85 |
| 38D | 85D | 100D | 38D | D85 |
| 38DD | 85E | 100E | 38DD | E85 |
| 38DDD | 85F | 100F | 38E | F85 |
Estimates from standard size tables; a given style can differ. UK and US band numbers are labels, not your underbust in inches.
Sizes outside the Wacoal America range in our catalogue: the closest sister size
A sister size keeps about the same cup volume on another band. For a size just outside the range recorded for Wacoal America, here is the sister size inside it.
| Size (US) | Sister size in the range | Change |
|---|---|---|
| 32J | 34I | one band up, one cup down |
| 34J | 36I | one band up, one cup down |
| 36J | 38I | one band up, one cup down |
| 38J | 40I | one band up, one cup down |
| 28B | 30A | one band up, one cup down |
| 28C | 30B | one band up, one cup down |
| 28D | 30C | one band up, one cup down |
| 48B | 46C | one band down, one cup up |
| 48C | 46D | one band down, one cup up |
| 48D | 46DD | one band down, one cup up |
Wacoal America sizes: your questions
What does the Wacoal America bra size conversion chart look like?
Wacoal America sizes are US sizes: bands 30–46 and cups up to I in the range recorded in our catalogue. The tables above give each of them in EU, FR, UK and JP sizing; for example, a 34C from Wacoal America is EU 75C, FR 90C, UK 34C and JP C75.
Is there a Wacoal bra size calculator for the USA?
The free Cherry Size calculator works with Wacoal America sizes: measure your underbust (snug and level, right under the bust) and your bust (at the fullest point), and it turns these two numbers into a size estimate in US sizes and the other main systems; the tables above then give the US label to look for at Wacoal America.
What is the Wacoal America bra size chart in inches?
The band number on Wacoal America labels is a label, not your underbust in inches. In Cherry Size's conversion tables (not the brand's own chart), a 34 band corresponds to an underbust of about 28.5–30.5 in (72.5–77.5 cm); the brand's guide may place it differently. The cup table above gives the bust-minus-underbust difference in inches for every cup: C is about 5.4–6.4 in.
What are Wacoal America sister sizes?
Sister sizes keep about the same cup volume on another band: one band down and one cup up, or one band up and one cup down. For a 34C from Wacoal America, they are 32D and 36B. For sizes just outside the range, the sister-size table above gives the closest one inside it.
How do you measure your Wacoal bra size?
Four steps: measure your underbust and your bust with a soft tape; enter both numbers in the calculator; find the result in the tables above as a US size; and if it falls outside the Wacoal America range in our catalogue, look for the closest sister size in the range.
Where to find the Wacoal America size guide
Wacoal America publishes its own size guide on its website; we don't link to it here. Each product page lists the sizes of its style.
Don't know your size yet?
Measure your underbust and bust with a soft tape: the calculator turns them into a size estimate in every system, and the guide shows how to measure in two minutes.
Open the calculator →How to measure
Want your size at Wacoal America from your own measurements? Get Cherry Size. In the app, your size is free, and so is your size at 3 brands you choose. Every brand, the fitting room, the wardrobe and the journal need a subscription, with a free trial for eligible new subscribers.
Get the appCherry Size is not affiliated with Wacoal America; brand names are used for information only. Size range: Cherry Size catalogue. Conversions: Cherry Size size tables.