Everyday Tools

Shoe Size Conversion

Estimate adult UK, US and EU shoe sizes from foot length. The outputs use approximate traditional sizing formulas and are best used as a starting point before checking a particular brand's chart.

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Your inputs

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Your result

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Using the Shoe Size Conversion

Enter foot length in centimeters, not an existing shoe-size number. Select the US category to apply the corresponding approximate offset. The calculator rounds UK and US estimates to half sizes and the EU estimate to a whole size.

Worked example

Use the example inputs below to reproduce this result. These are the form's starting values, not recommended targets. Changing your inputs updates your result above; this worked example stays fixed for comparison. Results are rounded for display.

Example inputs

Foot length (cm)
26
US category
Men

Example result

Approximate UK size
7.5
Approximate US size
8.5
Approximate EU size
41

Method and assumptions

Approximate adult sizing using traditional last-length formulas. Manufacturer sizing varies; use the brand’s measurement chart for purchasing.

Use the size as a starting point

A size label compresses several fit considerations into a short code. It cannot capture every difference in shape, width or construction. Measure using the instructions associated with the product and compare the result with that manufacturer's chart. If the calculated label and the chart disagree, the product-specific information is more relevant to the purchase.

Common question

Will the same calculated size fit every brand?

No. Size labels do not fully describe the internal shape or dimensions of a shoe. Different brands and models can fit differently, so the measurement chart and actual fit are more useful than assuming a universal conversion.