Converting European Foot and Shoe Sizes to UK and USA sizes

Children's Standard Shoe Size Conversions

IMPORTANT - When using this guide, please see the information below the chart. All guides are approximate!

Country Baby to Toddler Sizes Toddler to Junior Sizes Junior to Teens Sizes Teens to Adults Sizes
UK Size UK0 UK1 UK2 UK3 UK4 UK4.5 UK5 UK6 UK7 UK8 UK8.5 UK9 UK10 UK11 UK12 UK12.5 UK13 UK1 UK2 UK2.5 UK3 UK4 UK5 UK6 UK7
USA Boy 1 2 3 4 4.5 5 6 7 8 9 9.5 10 11 12 13 13.5 1 2 3 3.5 4 5 6 7 8
USA Girl 2 3 4 5 5.5 6 7 8 9 10 10.5 11 12 13 1 1.5 2 3 4 4.5 5 6 7 8 9
European 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

These are the standard children's shoe sizes used by most of the shoe designers on the Petit Posh site but please note that these are a guide only and different companies can have a different idea of what each size is.

Converting the sizes is not a science and there is no exact formula or standard.

European sizes do not tend to differ from country to country so, if possible, if your child is currently wearing European shoes, see if they have the European size still on them and if so, use that to make your choice.

Converting Clarks, Kickers, Start-rite, Hush Puppies etc: Please be aware that all manufacturers have different fittings so, if you have recently had your child's feet measured then, it is likely that the shop will have used their own measure and this may not give the same fitting for other makes.

Australia and New Zealand seem to use the same shoe sizes as the United Kingdom for boys and girls. The USA and Canada have different sizes for boys and girls.

Children's Standard Foot Length Conversion

If you still have no idea what size shoe you should be buying then try this tip: Stand your child on a piece of paper and draw around their foot. You can then measure the length of the foot shape and although this is a last resort at least you get the size of the foot spread out. Now look at the chart below to see what size you should buy for the foot length you have measured.

Please note, this is only a guide and is only a last resort if you have no idea on what shoe size you need!

Approx: footlength (up to) in cms Approx: footlength (up to) inches UK Size Standard Euro Size USA Boys Shoe Size USA Girls Shoe Size Approx: Age
  0 16 1 2 0/3 months
  1 17 2 3 3/6 months
11cm 4.33" 2 18 3 4 3/6 months
11.6cm 4.56" 3 19 4 5 6/12 months
12.3cm 4.84" 4 20 5 6 6/12 months
13cm 5.11" 4 1/2 21 5 1/2 6 1/2 12/18 & 24 months
13.7cm 5.39" 5 22 6 7 12/18 & 24 months
14.4cm 5.66" 6 23 7 8 2/3 & 3/4 years
15cm 5.9" 7 24 8 9 2/3 & 3/4 years
15.6cm 6.14" 8 25 9 10 4/5 years
16.3cm 6.41" 8 1/2 26 9 1/2 10 1/2 4/5 years
17cm 6.69" 9 27 10 11 5/6 years
17.7cm 6.96" 10 28 11 12 5/6 years
18.4cm 7.2" 11 29 12 13 6/7 years
19cm 7.48 12 30 13 1 6/7 years
19.7cm 7.75" 12 1/2 31 13 1/2 1 1/2 8/9 years
20.4cm 8.03" 13 32 1 2 8/9 years
21cm 8.26" 1 33 2 3 10/11 years
21.7cm 8.54" 2 34 3 4 10/11 years
22.3cm 8.77" 2 1/2 35 3 1/2 4 1/2 12/13 years
23cm 9.05" 3 36 4 5 12/13 years
23.6cm 9.29" 4 37 5 6 14 years plus to Adult
24.3cm 9.56" 5 38 6 7 14 years plus to Adult
25cm 9.84" 6 39 7 8 14 years plus to Adult