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Shoe Size Converter

Convert shoe sizes instantly between US, UK, EU, and centimeter sizing standards for men and women.

Convert Shoe Size

Conversions are approximate and based on standard published international sizing charts.

Result

Live
UK Size
8.5
EU Size
42.5
Foot (cm)
27

How to Calculate & Formula Details

Mathematical Model FormulaApproximate conversions based on standard published international shoe size charts.

A shoe size converter translates sizing between US, UK, EU, and centimeter foot-length standards, useful when shopping from international retailers.

How Sizing Systems Differ

US, UK, and EU shoe sizes each use different base scales and increments. EU sizing (Paris point system) is based on foot length in centimeters multiplied by 1.5, while US and UK systems use their own historical scales that differ between men's and women's sizing.

Note on Accuracy

Because brands sometimes vary slightly in their sizing, these conversions are approximate guides based on standard published international size charts — always check a brand's specific size chart when possible.

Frequently Asked Questions

Is EU shoe size the same for men and women?

EU sizing uses the same numeric scale for men and women, unlike US and UK sizing which have separate men's and women's scales.

How accurate are shoe size conversions?

Shoe size conversions are approximate because sizing standards and brand-specific lasts vary. For a precise fit, measure your foot length in centimeters and compare against a specific brand's size chart.

What is the difference between US and UK shoe sizes?

UK sizes are typically about 0.5 to 1 size number smaller than the equivalent US size for the same foot length.

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