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Convert US Women's Sizes to UK Sizes

1 us women = -1.5 uk sizes. Multiply by 1, then − 2.5.

Result
-1.5

1 US W = -1.5 UK

Multiply by 1, then − 2.5.

Sizes vary between brands and styles by up to a full size. Use this as a starting point and check the maker's own chart. About accuracy

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US Women's Sizes to UK Sizes table

US Women's SizesUK Sizes
1 US W-1.5 UK
2 US W-0.5 UK
3 US W0.5 UK
4 US W1.5 UK
5 US W2.5 UK
10 US W7.5 UK
20 US W17.5 UK
25 US W22.5 UK
50 US W47.5 UK
100 US W97.5 UK
500 US W497.5 UK
1000 US W997.5 UK

About these units

The us women (US W) is a US customary unit of shoe size.

The uk (UK) is an imperial unit of shoe size.

Going the other way, 1 uk = 3.5 us women's sizes. Shoe sizing is three different systems built on the same foot. The UK and US scales count barleycorns, one third of an inch per size; Europe counts Paris points, two thirds of a centimetre; Japan and Mondopoint simply state the foot length. Measure your foot while standing, heel to longest toe, and convert from that length rather than from another brand's size.

Frequently asked

How many uk sizes are in a us women?
1 us women = -1.5 uk sizes.
How do you convert us women's sizes to uk sizes?
Multiply by 1, then − 2.5.
What is 10 US W in UK?
10 US W = 7.5 UK.

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