Women's Clothing Size Reference
Compare women’s US, UK, EU and Italy clothing size references using one published brand chart.
Last updated · View algorithm, constants and default inputs (JSON)
US
About this calculator
This women’s clothing reference crosswalk follows the published ASOS own-brand chart: US, UK, EU and Italy labels are mapped from the US number. It is not a universal sizing standard; other brands and garments may differ. Letter sizes are broad estimates.
Choose the calculation that matches your task
This reference starts from a women’s numeric size and maps regional labels using the stated ASOS own-brand chart. It does not infer fit from your measurements. Use the letter-size model only if you want illustrative chest and waist ranges for a selected letter label.
Worked example
calculated with the default values below
Your size system US · Your size number 8 US 8 · UK 12 · EU 40 · Italy 44 · Letter size M
General background references
Disclaimer
These calculators give general estimates. Sizing, pricing, availability and standards vary by brand, retailer and country, so treat the output as a starting point and confirm it against the seller's or authority's own figures.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
US n ↔ UK n+4 ↔ EU n+32 ↔ IT n+36
- US
- US size
- UK
- UK size
- EU
- European size
- IT
- Italian size
ASOS own-brand women’s crosswalk: US n ↔ UK n+4 ↔ EU n+32 ↔ Italy n+36. This retailer chart is not a universal standard.
Frequently asked questions
What sizing chart does this converter follow?
The US, UK, EU and Italy crosswalk follows the published ASOS own-brand women’s chart. It is a retailer-specific reference, not a universal standard; other brands and garments may use different measurements. The letter-size range is only a broad estimate.