WITHIN · SIZES · Updated 10 October 2026
Women's size 40 in US and UK sizes
What a women's 40 is in US and UK sizes when the label is European, French or Italian, and what 18 designers' own charts print at 40.
- Main chart: Hugo Boss, read 10 October 2026
- Charts compared: 18 charts from 18 makers
- Read: 9 October 2026 to 10 October 2026
Women's 40 in every system
Women's clothing sizes
| US | UK | Europe | France | Italy | Japan | Letter |
|---|---|---|---|---|---|---|
| 8 | 12 | 40 | 42 | 44 | 15 | L |
| 6 | 10 | 38 | 40 | 42 | 13 | M |
| 4 | 8 | 36 | 38 | 40 | 11 | S |
- Shops do not all agree. SSENSE's chart for one brand puts a US 4 at French 36, where Hugo Boss puts it at French 38. This table follows Hugo Boss.
Source: Hugo Boss (hugoboss.com), read 10 October 2026.
A European 40 at each designer
Of the 10 makers whose charts print a European 40, 6 say US 8, 1 US 2, 1 size M and 2 more give other sizes.
- US 2 at Amiri
- US 8 at Hugo Boss, Rick Owens, Song for the Mute, Golden Goose, Maison Margiela and Acne Studios
- Size M at Canada Goose
- US 6 to 8 at Aime Leon Dore
- US 6/8 at A.P.C.
| Maker | US | UK | Italy | France | Europe | Letter | Chart | Source |
|---|---|---|---|---|---|---|---|---|
| A.P.C. | 6/8 | 40 | L | A.P.C. women's clothing | A.P.C., 9 October 2026 | |||
| Acne Studios | 8 | 12 | 46 | 42 | 40 | L | Acne Studios women's tops | Acne Studios, 10 October 2026 |
| Aime Leon Dore | 6 to 8 | 12 to 14 | 40 to 42 | Aime Leon Dore women's clothes in other size systems | Aime Leon Dore, 9 October 2026 | |||
| Amiri | 2 | 8 | 40 | 36 | 40 | S | Amiri women's clothing sizes in every system | Amiri, 9 October 2026 |
| Canada Goose | 40 | M | Canada Goose women's sizes | Canada Goose, 9 October 2026 | ||||
| Golden Goose | 8 | 12 | 44 | 40 | L | Golden Goose women's tops | Golden Goose, 10 October 2026 | |
| Hugo Boss | 8 | 12 | 44 | 42 | 40 | L | Women's clothing sizes | Hugo Boss, 10 October 2026 |
| Maison Margiela | 8 | 12 | 44 | 40 | L | Maison Margiela women's clothes | Maison Margiela, 10 October 2026 | |
| Rick Owens | 8 | 12 | 44 | 40 | 40 | L | Rick Owens women's clothing | Rick Owens, 9 October 2026 |
| Song for the Mute | 8 | 12 | 40 | Song for the Mute women's sizes | Song for the Mute, 9 October 2026 |
A French 40 at each designer
Of the 10 makers whose charts print a French 40, 5 say US 8, 3 US 6, 1 US 12 and 1 more gives another size.
- US 6 at Hugo Boss, Amiri and Acne Studios
- US 8 at Balenciaga, Rick Owens, Valentino, Givenchy and Parajumpers
- US 12 at Mackage
- Size M at Moncler
| Maker | US | UK | Italy | France | Europe | Letter | Chart | Source |
|---|---|---|---|---|---|---|---|---|
| Acne Studios | 6 | 10 | 44 | 40 | 38 | M | Acne Studios women's tops | Acne Studios, 10 October 2026 |
| Amiri | 6 | 12 | 44 | 40 | 44 | L | Amiri women's clothing sizes in every system | Amiri, 9 October 2026 |
| Balenciaga | 8 | 12 | 44 | 40 | L | Balenciaga women's clothes | Balenciaga, 9 October 2026 | |
| Givenchy | 8 | 12 | 44 | 40 | Givenchy women's clothes | Givenchy, 10 October 2026 | ||
| Hugo Boss | 6 | 10 | 42 | 40 | 38 | M | Women's clothing sizes | Hugo Boss, 10 October 2026 |
| Mackage | 12 | 12 | 44 | 40 | Mackage women's sizes | Mackage, 10 October 2026 | ||
| Moncler | M | 12 | 44 | 40 | Moncler women's coats and jackets | Moncler, 9 October 2026 | ||
| Parajumpers | 8 | 12 | 44 | 40 | Parajumpers women's sizes | Parajumpers, 10 October 2026 | ||
| Rick Owens | 8 | 12 | 44 | 40 | 40 | L | Rick Owens women's clothing | Rick Owens, 9 October 2026 |
| Valentino | 8 | 12 | 44 | 40 | Valentino women's clothes | Valentino, 10 October 2026 |
An Italian 40 at each designer
Of the 14 makers whose charts print an Italian 40, 9 say US 4, 2 US 2, 1 US 6 and 2 more give other sizes.
- US 2 at Amiri and Acne Studios
- US 4 at Hugo Boss, Balenciaga, Rick Owens, Golden Goose, Maison Margiela, Valentino and 3 more
- US 6 at Burberry
- Size XS at Moncler
- US 4 to 6 at Mackage
| Maker | US | UK | Italy | France | Europe | Letter | Chart | Source |
|---|---|---|---|---|---|---|---|---|
| Acne Studios | 2 | 6 | 40 | 36 | 34 | XS | Acne Studios women's tops | Acne Studios, 10 October 2026 |
| Amiri | 2 | 8 | 40 | 36 | 40 | S | Amiri women's clothing sizes in every system | Amiri, 9 October 2026 |
| Balenciaga | 4 | 8 | 40 | 36 | S | Balenciaga women's clothes | Balenciaga, 9 October 2026 | |
| Burberry | 6 | 8 | 40 | Burberry women's coats and jackets | Burberry, 9 October 2026 | |||
| Givenchy | 4 | 8 | 40 | 36 | Givenchy women's clothes | Givenchy, 10 October 2026 | ||
| Golden Goose | 4 | 8 | 40 | 36 | S | Golden Goose women's tops | Golden Goose, 10 October 2026 | |
| Hugo Boss | 4 | 8 | 40 | 38 | 36 | S | Women's clothing sizes | Hugo Boss, 10 October 2026 |
| Mackage | 4 to 6 | 8 | 40 | 36 | Mackage women's sizes | Mackage, 10 October 2026 | ||
| Maison Margiela | 4 | 8 | 40 | 36 | S | Maison Margiela women's clothes | Maison Margiela, 10 October 2026 | |
| Marine Serre | 4 | 8 | 40 | 36/S | Marine Serre women's sizes | Marine Serre, 10 October 2026 | ||
| Moncler | XS | 8 | 40 | 36 | Moncler women's coats and jackets | Moncler, 9 October 2026 | ||
| Parajumpers | 4 | 8 | 40 | 36 | Parajumpers women's sizes | Parajumpers, 10 October 2026 | ||
| Rick Owens | 4 | 8 | 40 | 36 | 36 | S | Rick Owens women's clothing | Rick Owens, 9 October 2026 |
| Valentino | 4 | 8 | 40 | 36 | Valentino women's clothes | Valentino, 10 October 2026 |
The sizes either side
Shop in your size
Every piece on within shows the size its boutique printed and how many are left in it.
Each maker's full size chart
- A.P.C. size chart
- Acne Studios size chart
- Aime Leon Dore size chart
- Amiri size chart
- Balenciaga size chart
- Burberry size chart
- Canada Goose size chart
- Givenchy size chart
- Golden Goose size chart
- Mackage size chart
- Maison Margiela size chart
- Marine Serre size chart
- Moncler size chart
- Parajumpers size chart
- Rick Owens size chart
- Song for the Mute size chart
- Valentino size chart
More on sizing
- How to measure jeans before buying online
- How to measure a blazer that fits
- What a tailor can and cannot change
- How designer sizing runs, brand by brand
- Rick Owens sizing: one chart for both lines
- Moncler sizing: 00 to 8 for men, 000 to 7 for women
- Canada Goose sizing: trust the fit word, not the rule
- Essentials hoodie sizing
- Kith sizing: how the tees, jackets and sneakers fit
- Needles sizing: the Track Pant measured, XS to XL
The full chart
Sources
- Hugo Boss: Women's clothing sizes in US, UK, European, French, Italian and Japanese sizes, with letters. hugoboss.com, read 10 October 2026.
- Canada Goose: Women's size guide on the Chelsea Parka page, North America and Europe: bust, waist, hips and sleeve, and the Slim fit note. canadagoose.com, read 9 October 2026.
- Rick Owens: Women's clothing size table on the LS Lab Coat page: Italy, international, France, Europe, UK, USA, Japan, Australia and jeans sizes. rickowens.eu, read 9 October 2026.
- Amiri: Amiri women's ready to wear sizes in US, denim, IT/EU, FR, CN, JP and UK, with top and bottom measurements in inches and cm. amiri.com, read 9 October 2026.
- Aime Leon Dore: A women's product page and its INTL chart for women's US, UK, EU and JP sizes. aimeleondore.com, read 9 October 2026.
- Song for the Mute: Song for the Mute's women's size chart, with the fit line and model size, on its "Recess" Slim Tee page. songforthemute.com, read 9 October 2026.
- A.P.C.: A.P.C. women's and men's size guide: letter, EU and US sizes, jeans waist, rise and inseam, and EU to US shoe sizes. apc-us.com, read 9 October 2026.
- Golden Goose: Golden Goose's own size guide: women's and men's sneaker sizes with foot length, UK, US, Japan and Korea, and clothing sizes with chest, waist, hips and inside leg. goldengoose.com, read 10 October 2026.
- Maison Margiela: Size guide on a women's dress page: Italian sizes 36 to 48 against EU, US, UK, Japan, Korea and letters. maisonmargiela.com, read 10 October 2026.
- Acne Studios: Acne Studios' own size guide: size conversions and body measurements for women's and men's tops and bottoms, with jeans waist sizes. acnestudios.com, read 10 October 2026.
- Moncler: Size chart on a women's down jacket page: Moncler sizes 000 to 7 against Italy, France, UK, US and Japan, with bust, waist and hips, and the jacket's fit line. moncler.com, read 9 October 2026.
- Balenciaga: Women's ready to wear size guide on a hoodie page: letters, number labels, US, French, UK and Italian sizes, bust, waist and hips. balenciaga.com, read 9 October 2026.
- Valentino: Valentino's own women's size guide: shoes with foot length, clothes with bust, waist and hips, and belts. valentino.com, read 10 October 2026.
- Givenchy: Size conversion guide on a women's dress page: Givenchy sizes 34 to 44 against Italy, UK, US, Japan and Germany. givenchy.com, read 10 October 2026.
- Mackage: Women's size guide on the Beverly coat page: letter sizes with bust, waist, hips and arm length in inches, the size conversion chart and the fit guide. mackage.ca, read 10 October 2026.
- Parajumpers: Men's, women's and accessories size guides: body height, chest, waist and hips in cm, with Italian, UK, German, French and US sizes. parajumpers.it, read 10 October 2026.
- Burberry: Women's coats and jackets size guide on the Long Kensington trench page: UK, US and Italian sizes and letters with bust, waist and hips, and the fit line. ca.burberry.com, read 9 October 2026.
- Marine Serre: Size guide on a women's skort page: women's sizes in France, US, UK, Italy, Spain and Germany, Japan, Korea and China, with chest, waist and hip. marineserre.com, read 10 October 2026.