Free shoe size converter for men, women, and kids. Convert between US, UK, EU, and centimeter (foot length) sizes instantly when shopping international brands online. Includes a full size chart. Accurate, instant, no sign-up.
US • UK • EU • CM • Men, Women & Kids
Buy from international brands (UK, European, Japanese) with confidence. Avoid costly returns from wrong sizes.
Shopping abroad or buying shoes as gifts overseas? Convert instantly between local size systems.
The CM (foot length) is the most reliable basis — it's the actual measurement brands use internally.
Shoe sizes are confusingly different across regions, which is why converting accurately is essential when shopping international brands online. The US and UK both use an inch-based system but offset by about half a size — a US men's 9 is roughly a UK 8.5. Europe uses the Paris Point system (EU sizes), where each size step is 2/3 cm, so a US men's 9 is about EU 42. The most reliable measure is foot length in centimeters, because that's the underlying measurement all systems approximate.
Men's and women's sizing also differ: a women's US size is typically about 1.5 sizes larger in number than the equivalent men's US size (a women's 9.5 ≈ a men's 8). Kids' and youth sizing has its own scale that transitions to adult sizes around US 7 (youth) = US 7 (men's). Because brands and even individual shoe models fit differently, the smartest approach is to measure your foot length in cm, convert from CM here, and then cross-check the specific brand's size guide and customer reviews before buying.
US 9 = UK 8.5 = EU 42 = 27 cm. US 10 = UK 9.5 = EU 43 = 28 cm. US 11 = UK 10.5 = EU 44 = 29 cm.
US 7 = UK 5 = EU 38 = 24 cm. US 8 = UK 6 = EU 39 = 25 cm. US 9 = UK 7 = EU 40 = 26 cm.
Stand on paper, mark heel to longest toe, measure in cm. Add ~0.5–1 cm wiggle room. Measure both feet — use the larger.
Nike, Adidas, and European brands fit differently even at the "same" size. Always check the brand's own chart and reviews.