Shoe Size Converter

Why are US men's and women's shoe sizes different?

US men's and women's shoe sizes are offset by approximately 1.5 sizes for the same foot length — a US Women's 8 corresponds to approximately a US Men's 6.5. This difference exists historically because the sizing systems were developed separately for men's and women's lasts (the foot-shaped forms used to make shoes), which have different proportions beyond just length. UK and EU sizes do not have this gender split in the same way.

Is a UK size always 1 less than a US size?

For men's shoes, US = UK + 1 (approximately). US Men's 10 = UK 9. For women's shoes, the relationship is approximately US Women's = UK + 2. However, this is a general rule with exceptions — some brands, especially children's shoes and some European brands selling in the UK, use slightly different conversions. Always verify with the brand's specific size chart.

What do EU shoe size numbers mean?

EU shoe sizes are measured in Paris points (⅔ centimetre increments). EU 42 ≈ 42 × 0.667cm = 28cm total shoe length (foot length is slightly shorter than shoe length). Unlike US/UK systems, EU sizes are gender-neutral — there are no separate men's and women's EU scales. Both genders use the same numerical system based purely on foot length.

How do I measure my foot for shoe sizing?

Stand on a piece of blank paper with your full weight on the foot. Trace the outline of your foot (or have someone trace it). Measure from the back of your heel to the tip of your longest toe. Repeat for both feet — most people have one foot slightly larger than the other, and you should size for the larger foot. Add 0.5–1cm to your measurement for comfort allowance, then match to your brand's size chart.

Do shoe sizes vary between brands?

Yes, significantly. Even within the same country and same nominal size, actual shoe dimensions (length, width, toe box shape, heel counter) vary between brands and between shoe lines within the same brand. Nike tends to run slightly long, while New Balance is known for wider toe boxes. European fashion brands (especially Italian luxury) typically run narrow. Always check brand-specific reviews and sizing notes when buying a new brand.

How do children's shoe sizes relate to adult sizes?

Children's sizes in the US use a separate scale. US Kids' sizes typically go up to size 13 (the last kids' size), after which they transition to adult sizes starting at US 1. A US Kids' 13 is equivalent to approximately US Men's 1 or US Women's 2.5. EU children's sizes continue on the same Paris point scale as adults — EU 32–35 covers most older children, transitioning seamlessly to adult EU 36+.

What is the difference between D, E, and EE width fittings?

Shoe width fittings indicate the circumference of the foot at the ball (widest part). Standard width varies by country: US uses letters (D = standard men's, B = standard women's; E = wide, EE/2E = extra wide). UK uses letters (D = standard, E = wide, EEE = extra wide). EU uses numeric descriptors. Buying the wrong width causes blisters, bunions, and discomfort even when the length is correct. If you're between widths, generally go wider.

Can I convert shoe sizes for hiking or sports shoes?

Yes, but with extra caution. Athletic shoes (running, hiking) often have more sizing variation than casual shoes because they're designed for specific foot shapes and activity patterns. Nike running shoes famously run about half a size long. Hiking boots often need a full size up to accommodate thick socks and toe space for downhill protection. Always check activity-specific size charts from the manufacturer rather than relying solely on generic size conversion tables.