Hi All Thought it might be helpful to explain a little about measuring and sizes. The measure is just a guide for the shoe fitter. You will find different measures will come up with different sizes. Clark's, for example, will give a guide size 1/2 a size bigger than Start-rite. In other words Clark's are smaller so you need a bigger size. The only way to know the right size is to try on the shoe and check if it fits in both the length and the width - with a good fit allowing for room to grow in both directions. That's why it's very difficult to tell you what size you need from the size on the gauge alone and why you will find your child is a different size in different brands. Even in the same brand different shoes fit differently. This is mainly due to the different shoe lasts and materials from which the shoes are constucted. You will often hear us saying something like "we will start with a 5 but we may end up in a 6".Hope that helps! Do DM with any specific queries Julie, Biff