Japanese women's underwear uses its own domestic sizing system.
Before purchasing, please check the conversion chart for your country’s size.
* The size conversion chart below is only a general guide.
Sizes may vary by brand or product, so please refer to the size guide on the product page or the brand’s official size chart before making your final decision.
Bra
Japanese bras are indicated by cup size (A, B, C, etc.) + underbust measurement (cm), such as B75.
Please check both the underbust and cup size using the conversion charts below.
Underbust (Band Size)
| Japan (cm) | US | EU | UK |
|---|---|---|---|
| 65 | 30 | 80 | 30 |
| 70 | 32 | 85 | 32 |
| 75 | 34 | 90 | 34 |
| 80 | 36 | 95 | 36 |
| 85 | 38 | 100 | 38 |
| 90 | 40 | 105 | 40 |
* US and UK band sizes are shown in inches.
* EU band sizes follow French/Spanish-style sizing, and the approximate guide is the underbust measurement (cm) plus about 15.
Cup Size
| Japan / EU | US | UK |
|---|---|---|
| AA | AA | AA |
| A | A | A |
| B | B | B |
| C | C | C |
| D | D | D |
| E | DD | DD |
| F | DDD / F | E |
| G | G | FF |
* Japan and the EU use the same cup size notation.
* In the US and UK, cup size notation differs from Japan for D cup and above. Notation may vary by brand, so please check the brand’s official size chart before purchasing.
Panties / Underwear
Japanese panties commonly use letter sizes such as S, M, and L. The chart below compares sizes based on approximate waist and hip measurements (body measurements).
| Japan | Approx. Waist (cm) | Approx. Hip (cm) | US | EU | UK |
|---|---|---|---|---|---|
| SS | 55〜60 | 80〜85 | XS | 32〜34 | 4〜6 |
| S | 60〜65 | 85〜90 | S | 34〜36 | 6〜8 |
| M | 65〜70 | 90〜95 | M | 38〜40 | 10〜12 |
| L | 70〜75 | 95〜100 | L | 40〜42 | 12〜14 |
| LL（2L） | 75〜80 | 100〜105 | XL | 44〜46 | 16 |
| 3L | 80〜85 | 105〜110 | XXL | 46〜48 | 18〜20 |
* The size conversion chart above is a general guide.
* Sizes may vary depending on the brand or product.
* Please use it as a reference only.
* Please feel free to contact us if you have any questions.
*This FAQ is displayed using automatic translation.