Guides
Sizing guides
Size labels look like a shared language and are not. Each guide answers one question with numbers taken from brands' own charts, names its sources, and says where the usual conversion table goes wrong.
Shoes
- ShoesConversions
US to EU shoe size, brand by brand
The same US women's shoe size is a different EU and UK size at each brand. Official charts compared side by side for US 6 to 11, checked by hand.Updated 18 September 2026. 7 minute read. - ShoesConversions
How shoe sizes are built: barleycorns, Paris points and centimetres
US and UK sizes count thirds of an inch, EU sizes count two thirds of a centimetre, JP sizes are a length. The formulas, and how far brand charts stray.Updated 18 September 2026. 6 minute read. - ShoesConversions
Men's to women's shoe sizes: the offset depends on the brand
Most brands put a women's size 1.5 above the men's, but not all. The offset each brand prints on its own chart, and how to buy unisex shoes by length.Updated 18 September 2026. 4 minute read. - ShoesConversions
Shoe widths: what B, D, 2E and 4E mean for women and men
Women's shoes are made in B and men's in D, so a men's medium is about a women's wide. Width letters by gender, and how to convert a wide size across.Updated 19 September 2026. 4 minute read.
Clothing and jeans
- ClothingConversions
EU sizes are not one system
A tag that says EU 38 can be German, French or Italian numbering. Women's conversion table for US, UK, DE, FR, IT, AU and JP, and the traps to avoid.Updated 18 September 2026. 6 minute read. - ClothingConversions
Jeans waist size is not your waist: what each brand cuts a tag for
A jeans tag that says 28 is cut for a body waist above 28 inches at most brands. Brand by brand numbers from official charts, and what a 28 is in US sizes.Updated 18 September 2026. 5 minute read.
Leggings and activewear
- ActivewearRegional fit
Asia fit and regional sizing: the same letter, a different garment
Nike, Under Armour, Uniqlo and The North Face Japan publish different size charts by region. Official numbers side by side, and rules for buying abroad.Updated 18 September 2026. 7 minute read. - ActivewearConversions
What size is a medium? The same letter, brand by brand
A medium in leggings covers a different waist and hip at every brand. Official chart numbers side by side, and which US numeric sizes a medium stands for.Updated 18 September 2026. 5 minute read.
Bras
- BrasConversions
UK vs US bra sizes: where the cups split
UK and US bands match, but cups split after DD: UK E is US DDD and UK F is US G. Cup and band charts for UK, US, EU, FR, AU and JP from brand sources.Updated 18 September 2026. 6 minute read. - BrasConversions
Bra sister sizes: the same cup on a different band
34C, 32D and 36B hold the same cup volume. Find your sister sizes in US and UK letters, see the full chart, and learn when a sister size fixes the fit.Updated 19 September 2026. 4 minute read.
Tights
Rather not convert anything?
Tell us one item you own and how it fits. We read the brand's own chart and work out your size at other brands, with a confidence level on every answer.