Size Conversion Result

40
EU (EU)
6.5
UK (UK)
Women's Shoe Sizes

All International Equivalent Sizes

RegionSizeFull Name
US 9 US
UK 6.5 UK
EU 40 EU
How to Use This Conversion
  • Size 40 in EU (EU) equals size 6.5 in UK (UK)
  • This conversion applies to Women's Shoe Sizes
  • See all equivalent sizes in the table above
  • Always check brand-specific size charts when possible
Important Notes
  • Sizes may vary between brands and manufacturers
  • These are general conversion guidelines
  • Always try on clothes when possible
  • Check return policies for online purchases

Full Size Conversion Charts

40 EU = 6.5 UK — here’s the full picture.

EU to US (Men)

EUUS
3910.4
4011.9
4113.4
4214.9
4316.4
4417.9
4519.4

EU to CM (Mondopoint)

EUCM
3926
4026.7
4127.3
4228
4328.7
4429.3
4530
EU 40 ≈ 26.7 cm foot length

How Sizing Systems Work

US Sizing (Brannock)

Based on inches. US 6.5 ≈ 19.1 cm from heel to toe.

EU Sizing (Paris Point)

Each size = 6.67 mm. EU 40 = 40 × 6.67 mm ≈ 26.7 cm inner length.

Brand & Width Variations

40 EU ≠ Same Fit Everywhere

  • Nike/Adidas: run 0.5 size small → try US 7
  • Clarks: true to size → US 6.5
  • Vans: narrow → consider wide (E/EE)
Width Matters! US: D (standard), E/EE (wide). EU: rarely specified.

Measure Your Foot at Home

  1. Stand on paper, heel against wall
  2. Mark longest toe
  3. Measure in cm → EU = cm × 1.5
  4. Add 1–1.5 cm for comfort

EU 40? Your foot = 26.7 cm

Frequently Asked Questions

No — EU 40 = UK 6.5

~10.5 inches (inner). Foot: ~10.3 in.

~US 8–8.5 women’s

Online Shopping Checklist

  • Check return policy (free returns?)
  • Read reviews for “runs small/large”
  • Find brand size chart on product page
  • Size up for thick socks or sports
About This Conversion

Convert Women's Shoe Sizes size 40 from Europe (EU) to United Kingdom (UK) sizing. Size 40 in EU equals size 6.5 in UK. See all equivalent international sizes.

Category:Women's Shoe Sizes
From:40 (EU)
To:6.5 (UK)
Regions Available:3