UK Size 5 = US Size 7 = EU Size 38.
EU size 35.5
EU 43 28cm US 10 3/4 UK 9
She is a size 37 Eu/ 6.5 US.
It's a size 5 in UK
7us (37 1/2 eu)
Shoes in the European sizing chart are not gender based. However, the US employs a M/F sizing, a mens size 7 is a 39 EU and a women's 7 is a 37.5EU.,
In the United Kingdom, a size 11 shoe would translate to a size 29 in New Zealand. It would also be a 45 EU size and a 12 in the United States.
C=Child 11, Size 11, Shoe Length (cm) 18.5, EU size 29
It's 7. That means in Europe size 39.So he has quite small feet.
Here's a link to a nice conversion chart. http://www.bata.com/documents/pdf/size_chart_printable.pdf It seems like the EU (French) system is the most foolproof because the sizes go up by 6.6mm each increment. (Other systems seem to be comparatively arbitrary) In other words, look at your children's shoe size on the tongue of the shoe. Hopefully it will have the EU size listed too. Refer to the chart and find your EU size on the "French" scale. From there you should be able to convert your shoe size to anything.
US 10, Uk 12, EU 40