There are a number of comparison charts on the internet for clothing, one of which is at; http://www.engineeringtoolbox.com/cloth-sizing-d_221.html
US size 12 is a UK size 14. US sizes are one size smaller than UK sizes
there is no standarized system in the UK, but generally sizing charts there start at size "0" where as in the US, they start with size one. Which generally means UK sizes are one size smaller than US sizes. For instance, size 8 in UK, may be a size 9 in the US. There are sizing charts available on the internet to assist you with this calculation. weight in kilos compared with weight in pounds
UK shoe sizes may be converted into the standard US size by using a chart. A US shoe of size 8 is typically marked as a UK size 7.5, however it is important to try a shoe on first as each manufacturer may have different fits.
The male shoe sizes USA are generally a half size smaller that Male UK i.e. USA 2 = UK 2.5. US 5.5 = UK 6 Female are somewhat less conventional Ladies US shoe Size is 2.5 sizes bigger than UK ladies i.e US 5 = UK 2.5, US 7 = UK 4.5 UK Girls shoes are half size smaller than US size i.e US 8.5 = UK 8 Strange but that's it.
In UK sizes saucony shoe sizes range from 2 - 16 is men's shoes(3-17 in US sizes). In UK sizes saucony shoe sizes range from 2 - 11 is men's shoes(4-13 in US sizes).
UK sizes are one smaller than US. So a UK 11 is a US 12, and a US 11 is a UK 10.
the US clothes area size down from the UK,so a UK's size 8 would be a US size 6.
while th us womens sizes start at 0 and go up by two's from there, UK womans sizes start at four and go up from there also by two's. So for example, if a woman is a size 4 in the states, she would be a size 8 in the UK.
you can check out this website to compare women's shoe sizes. It says a US size 9 is a UK size 6.5 http://shoes.about.com/od/fitcomfort/a/wintshoesize.htm
6-13 UK, 7-14 US.
where will i get a good us clothes converter from UK sizes
The UK correspondent number for the US women's shoe size 9 is an size 40 in the UK. There are no half sizes in the UK making there sizing chart a little different then the US.