Why don't the converted sizes match exactly across brands?

The US/UK/EU size charts here are standardized approximations. Actual fit varies by brand, cut and manufacturer, so treat the converted size as a starting point and check the specific brand's own size chart when possible.

Does this cover both shoe and clothing sizes?

Yes, choose the category (shoe or clothing) and the system you already know (US, UK or EU) to see the equivalent size in the other systems, including letter sizes (XS-XXL) for clothing.

International Size Converter

Convert shoe and clothing sizes between US, UK and EU systems.

How this is calculated

Table lookup across standard US/UK/EU shoe and clothing size charts

Assumptions used in this calculation

Approximate: Size charts vary slightly by brand, use this as a general guide, not an exact fit guarantee.

About this calculator

The size converter converts shoe and clothing sizes between US, UK, EU and letter (XS-XXL) sizing systems.

Worked example

US shoe size 9

Result: UK 8, EU 42

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International Size Converter

About this calculator

Frequently asked questions

Why don't the converted sizes match exactly across brands?

Does this cover both shoe and clothing sizes?