US Women to European Conversion Table
| US Women (US W) | European (EU) | Reference Benchmark | Formula Step |
|---|---|---|---|
| 4.5 US W | 36.13 EU | Petite Italian leather pointed-toe kitten heels | EU = (4.5 − 2) × 1.25 + 33 = 36.13 |
| 5 US W | 36.75 EU | Designer French slingback kitten heel pumps | EU = (5 − 2) × 1.25 + 33 = 36.75 |
| 5.5 US W | 37.38 EU | Handcrafted Parisian leather ballet flats | EU = (5.5 − 2) × 1.25 + 33 = 37.38 |
| 6 US W | 38 EU | Italian almond-toe block heel work pumps | EU = (6 − 2) × 1.25 + 33 = 38.00 |
| 6.5 US W | 38.63 EU | Luxury calfskin ankle booties & chelsea boots | EU = (6.5 − 2) × 1.25 + 33 = 38.63 |
| 7 US W | 39.25 EU | Women's everyday cushioned walking sneakers | EU = (7 − 2) × 1.25 + 33 = 39.25 |
| 7.5 US W | 39.88 EU | Continental suede strappy evening sandals | EU = (7.5 − 2) × 1.25 + 33 = 39.88 |
| 8 US W | 40.5 EU | Contemporary European platform leather loafers | EU = (8 − 2) × 1.25 + 33 = 40.50 |
| 8.5 US W | 41.13 EU | High-performance women's road marathon shoes | EU = (8.5 − 2) × 1.25 + 33 = 41.13 |
| 9 US W | 41.75 EU | Waterproof leather equestrian riding boots | EU = (9 − 2) × 1.25 + 33 = 41.75 |
| 9.5 US W | 42.38 EU | Modern combat lug-sole city fashion booties | EU = (9.5 − 2) × 1.25 + 33 = 42.38 |
| 10 US W | 43 EU | Tall women's tailored knee-high dress boots | EU = (10 − 2) × 1.25 + 33 = 43.00 |
| 10.5 US W | 43.63 EU | Outdoor waterproof alpine trail trekking boots | EU = (10.5 − 2) × 1.25 + 33 = 43.63 |
| 11 US W | 44.25 EU | Comfort-width orthopedic walking footwear | EU = (11 − 2) × 1.25 + 33 = 44.25 |
| 11.5 US W | 44.88 EU | Extended-size designer leather evening slip-ons | EU = (11.5 − 2) × 1.25 + 33 = 44.88 |
| 12 US W | 45.5 EU | Extended-range women's athletic trainers | EU = (12 − 2) × 1.25 + 33 = 45.50 |
US Women to European Formula & Unit Definitions
Because 1 American barleycorn equals 8.46 mm while 1 Paris Point equals 6.67 mm, each American size interval expands by a factor of 1.25 (8.46 / 6.67 ≈ 1.25). Taking into account the British last base offset (US Women − 2), the mathematical formula is: EU = (US W − 2) × 1.25 + 33.
Quick Estimation: Subtract 2 from your US Women's size, multiply by 1.25 (or add one quarter), and add 33. For example, US Women 7 becomes (7 − 2) × 1.25 + 33 = 5 × 1.25 + 33 = 39.25 (standard EU 39).
US Women (US W)
Source Standard- Calibrated on the American Brannock Device women's scale, offset by one full size from men's lasts.
- Graded in 1/3-inch (8.46 mm) intervals for full sizes and 1/6-inch (4.23 mm) for half sizes.
- Default medium width is classified as 'B' width across North American women's shoe manufacturers.
European (EU)
Target Standard- Standardized across Continental Europe using the historic Paris Point (6.67 mm or 2/3 cm per unit).
- Continuous single sizing scale applied uniformly across women's, men's, and children's lasts.
- Continental footwear lasts generally incorporate an integrated medium width equivalent to an American B/C width.
Frequently Asked Questions
Q.How do you convert US Women's shoe size to EU size?
Subtract 2 from your US Women's size, multiply by 1.25, and add 33. For example, a US Women 7 converts to (7 − 2) × 1.25 + 33 = 39.25 (standard EU 39). To convert back, use our EU to US Women shoe converter.
Q.What is the formula for converting US Women to European shoe sizes?
The official formula is EU = (US W − 2) × 1.25 + 33. It translates American barleycorns (8.46 mm) into European Paris Points (6.67 mm) with the appropriate base calibration.
Q.What is a US Women's size 8 in European sizing?
A US Women's size 8 equals European size 40.5: (8 − 2) × 1.25 + 33 = 40.5. Most European shoe brands offer this as EU 40.5 or recommend rounding to EU 40 or 41 based on width.
Q.How does shoe width differ between US Women and European sizes?
The standard American women's width is 'B', whereas European footwear lasts typically have a slightly more generous forefoot contour equivalent to an American B/C width.