Convert Adult UK Shoe Size (United Kingdom And Ireland Shoe Size) to Last Length In Mm (Foot And Last Lengths)

You thought different length or weight units were a nightmare? No, shoe sizes – that's where the real mess is. Various footwear manufacturers measure different things: a foot, a shoe last or an inner cavity of the shoe. They not only use absolutely different scales in various countries, the scale may differ from one manufacture to another even if they seem to use the same one.

The fitting also highly depends on the width of a shoe as well as other characteristics of the model. That's why your best bet is always trying on the shoes before you buy. Never choose shoes by size without trying if it's not the same model you had before!

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adult UK shoe size
United Kingdom and Ireland Shoe Size
last length in mm
Foot and Last lengths

This page features online conversion from adult UK shoe size to last length in mm. These units belong to different measurement systems. The first one is from United Kingdom And Ireland Shoe Size. The second one is from Foot And Last Lengths.

If you need to convert other units, please start with the home page. You can also switch to the converter for last length in mm to adult UK shoe size.

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Please note
This converter can give you shoe sizes that no manufacturer produces, e.g. too small or too big. The fact the shoe size can be calculated does not necessarily mean you could buy shoes of this size.
? This value corresponds to the foot length less than zero.
A foot length cannot be negative.

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