JW PEI shoe size guide: US to EU and UK conversion, fit and which styles to size up

JW PEI sizes its shoes in US numbers, and most shoppers outside the United States want an EU size. JW PEI publishes its own chart with foot lengths, and on two styles it tells you to size up. Every figure on this page comes from the brand’s published size chart and product pages.

Key facts

• JW PEI makes women’s shoes in US sizes 5 to 11, with half sizes on most styles.
• Brand chart: US 5 = EU 35, US 6 = EU 36, US 6.5 = EU 37, US 7 = EU 37.5, US 7.5 = EU 38, US 8 = EU 38.5, US 8.5 = EU 39, US 9 = EU 40, US 10 = EU 41, US 11 = EU 42.
• UK sizes are two below US on the brand chart: US 6 = UK 4, US 9 = UK 7.
• Coveti lists whole EU sizes 36 to 42; each EU size is one exact JW PEI US size, so there is no rounding at dispatch.
• The brand advises sizing up on the Helena pierced mules and half a size up on the Piper platform sandal.

The JW PEI shoe size chart

The foot lengths are the brand’s own, measured heel to longest toe. Measure your foot in the evening, standing, and match the length rather than the number you usually buy; synthetic uppers do not stretch the way leather does.

How Coveti lists JW PEI sizes

Coveti sells on a whole EU ladder, so each pair is listed in EU 36 to 42 and every rung maps to exactly one JW PEI US size. EU 36 is US 6, EU 38 is US 7.5, EU 39 is US 8.5, EU 40 is US 9, EU 41 is US 10 and EU 42 is US 11. EU 37 is the brand’s US 6.5 where the style is made in it; where it is not, EU 37 is the US 7, which the brand charts at 37.5. The half sizes that sit between our rungs, US 8, 9.5 and 10.5, are not listed. Every product page spells out its own conversion, so you can check before you buy.

Do JW PEI shoes run small?

For most styles, no. The brand gives no sizing instruction on most product pages, which is its way of saying true to size, and the shapes are cut to the chart above. The exceptions are specific and stated:

• Helena pierced mules: JW PEI says it typically advises customers to size up from their regular shoe size. The pierced vamp sits close over the toes.
• Piper platform sandal: the brand recommends going up half a size for comfort.
• Pointed pumps and slingbacks: no brand advice, but a pointed toe always feels shorter; if you are between sizes, take the larger.
• Ballet flats and ballerina sneakers: cut to the chart; the lace-up fronts on the Caitlin give a little adjustment over the instep.

6 pairs at Coveti carry a size-up note on their product page. If a style has no note, buy your chart size.

Boots: shaft height and circumference

JW PEI publishes shaft measurements for its boots by US size. At US 6 the Olivia knee-high boot measures 37.5 cm from the floor including the heel, with a 25 cm ankle and a 56 cm opening; the Sophia mesh boot measures 23.5 cm with a 30 cm opening; the Reyna knit platform boot 26.2 cm with a 35 cm opening. Each size up adds a few millimetres. If you have a fuller calf, compare the opening with your own calf measurement before choosing a knee-high style. Our JW PEI boots guide lists every style.

Heel height by style

Every JW PEI listing gives the heel in centimetres. As a guide: ballet flats and ballerina sneakers 1 to 1.5 cm; the Helena pierced mule 2.5 cm; kitten heels 4 to 5.5 cm; most heeled mules and strappy sandals 8 to 9.5 cm; the tallest pumps 10 to 11.5 cm. If you are buying for a long day on your feet, stay at 5.5 cm and under; our heels guide sorts the line by height.

Clothing and bags

JW PEI dresses use a different US to UK conversion, US 2 = UK 6 and so on; that chart is in the JW PEI clothing size guide. Bags are one size, with the brand’s dimensions on every page.

Frequently asked questions

What size is a US 7 in JW PEI in EU?

EU 37.5 on the brand chart. At Coveti it is listed as EU 37 on styles that are not made in US 6.5; where a style comes in US 6.5, EU 37 is the 6.5 and the US 7 is not listed.

Do JW PEI shoes run small?

True to size on most styles by the brand’s account. It advises sizing up on the Helena pierced mules and half a size up on the Piper platform sandal.

What is a US 8 in JW PEI?

EU 38.5 and UK 6 on the brand chart, a 247 mm foot. Coveti lists whole EU sizes, so choose EU 38 (US 7.5) for a closer fit and EU 39 (US 8.5) for more room.

Does JW PEI make half sizes?

Yes, on most styles: US 6.5, 7.5 and 8.5, and on some styles 7, 8, 9.5 and 10.5. Coveti lists the sizes that map to a whole EU number.

How do I convert JW PEI US sizes to UK?

Subtract two: US 6 is UK 4, US 8 is UK 6, US 10 is UK 8, on the brand’s own chart.

Are JW PEI shoes wide?

The brand publishes no width fittings. The square-toe and almond-toe styles are the roomiest; the pointed pumps and slingbacks are the narrowest.

Read next

JW PEI shoes: the complete guide. JW PEI clothing size guide. JW PEI mules. Shop JW PEI at Coveti.