Shoe Brand Size Finder

Same labelled size, different fit. Tell us your usual size and the brand you're buying, and we'll tell you which size to actually order — based on how each brand is known to run.

Reviewed by the 247Sizing teamLast updated: 27 August 2026

This doesn't replace measuring. It applies each brand's known tendency to run small or large on top of a standard size. For the most reliable result, start from your real foot length in the converter.

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Frequently asked questions

Which shoe brands run small?

Nike and adidas both tend to run about half a size small, especially in lifestyle models — consider sizing up half a size in either.

Which shoe brands run large?

Converse runs about a full size large (size down one), Dr. Martens also runs large and only comes in whole sizes (size down if you're between sizes), and Clarks runs about half a size large.

Do New Balance and Vans run true to size?

Yes — both brands run true to size in our data, so your standard US/UK/EU size should fit as expected.

How does Birkenstock sizing work?

Birkenstock uses its own EU-only sizing and tends to run large. Go by the EU number for your foot length rather than converting from your usual US or UK shoe size.