How shoe Size conversion is done ?

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3 Answers

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The adult shoe sizes are calculated from typical last length, which is converted from foot length in mm by adding an allowance of two shoe sizes:

{\displaystyle {\text{EUR shoe size}}={\frac {L+2\times {6.6{\bar {6}}}}{6.6{\bar {6}}}}={\frac {3}{20}}\times {L}+2} 

European shoe size conversion
EURMondoUKUS menUS women
34215234
34.52152.53.54.5
35220345
35.52253.54.55.5
36225456
36.5230456
372354.55.56.5
37.5235567
382405.56.57.5
38.52455.56.57.5
39245678
39.52506.57.58.5
40255789
40.52557.58.59.5
412607.58.59.5
41.52658910
422658.59.510.5
42.527091011
432759.510.511.5
43.52759.510.511.5
44280101112
44.528510.511.512.5
45285111213
45.529011.512.513.5
4629511.512.513.5
46.5295121314
4730012.513.514.5
47.5305131415
48305131415
48.531013.514.515.5
49315141516
49.531514.515.516.5
50320151617

SOURCE          https://en.wikipedia.org/wiki/Shoe_size 

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answered May 15 by SHOE MAG
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The standard also includes quick conversion tables for adult shoe sizes; they provide matching sizes for shoes marked in Mondopoint, UK and US systems. Converted values are rounded to a larger shoe size to increase comfort.

                            

Mondopoint conversion
MondoEURUKUS menUS women
215342.53.54.5
22035345
22535.53.54.55.5
23036.5456
235374.55.56.5
240385.56.57.5
24538.5678
25039.56.57.58.5
25540789
260417.58.59.5
26541.58.59.510.5
27042.591011
275439.510.511.5
28044101112
28544.510.511.512.5
29045.5111213
29546121314
3004712.513.514.5
30547.5131415
31048.513.514.515.5
31549141516
32050151617

SOURCE             https://en.wikipedia.org/wiki/Shoe_size
 

 

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answered May 15 by shoe abc
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Shoe size in the United Kingdom, Ireland, India, Pakistan and South Africa is based on the length of the last used to make the shoes, measured in barleycorns (​1⁄3 inch) starting from the smallest size deemed practical, which is called size zero. It is not formally standardised. Note that the last is typically longer than the foot heel to toe length by about 1⁄2 to 2⁄3 inch (13 to 17 mm).

A child's size zero is equivalent to 4 inches (a hand = 12 barleycorns = 10.16 cm), and the sizes go up to size ​13 1⁄2 (measuring ​25 1⁄2 barleycorns, or 8 1⁄2 inches (21.59 cm)). Thus, the calculation for a children's shoe size in the UK is:

{\displaystyle {\text{UK shoe size}}={\frac {L+2\times {8.4{\bar {6}}}}{8.4{\bar {6}}}}-25={\frac {3}{25.4}}\times {L}-23}

United Kingdom shoe size conversion
UKMondoEURUS menUS women
22103434
2.521534.53.54.5
32203545
3.522535.54.55.5
423036.556
4.5235375.56.5
523537.567
5.5240386.57.5
62453978
6.525039.57.58.5
72554089
7.526040.58.59.5
826041.5910
8.5265429.510.5
927042.51011
9.527543.510.511.5
10280441112
10.528544.511.512.5
1129045.51213
11.52904612.513.5
1229546.51314
12.53004713.514.5
1330547.51415
13.531048.514.515.5
14315491516
14.532049.515.516.5
15320501617


SOURCE       https://en.wikipedia.org/wiki/Shoe_size
 

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answered May 16 by SHOE MAG
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