How does AMPHI bra sizing run?
AMPHI is labelled in JP sizing. Trend-led Wacoal sub-brand. Below is how a AMPHI size translates across all eight regional standards, plus sister sizes and where to buy.
AMPHI size range & system
AMPHI sizes in JP.
AMPHI size conversion chart
Each row is one AMPHI cup size read across the eight standards. The JP column (highlighted) is how AMPHI labels its bras.
| US | UK | EU | FR | IT | AU | JP | IN |
|---|---|---|---|---|---|---|---|
| A | A | A | A | A | A | A | A |
| B | B | B | B | B | B | B | B |
| C | C | C | C | C | C | C | C |
| D | D | D | D | D | D | D | D |
| DD | DD | E | E | E | DD | E | DD |
| DDD | E | F | F | F | E | F | E |
Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.
Common AMPHI sizes
Open the full eight-standard conversion for a specific size:
Sister sizes in AMPHI
If a AMPHI bra fits in the cup but the band is off, your sister size keeps the same cup volume with a different band — go down a band and up a cup, or up a band and down a cup. Example: a 34D and a 32DD hold the same cup volume.
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AMPHI sizing FAQ
- Does AMPHI run true to size?
- Japanese sizing. Wacoal youth line. Trend-led Wacoal sub-brand.
- What sizing system does AMPHI use?
- AMPHI is labelled in JP sizing. Use the conversion table above to read your size across US, UK, EU, FR, IT, AU, JP and IN.
- What is a 34D in AMPHI in EU sizing?
- A US 34D converts to EU 75D. Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.