My daughter is a tall six year old. She wears 13 inch Nike kids for reference. Your legs are skinny. I ordered 13 and it was at least an inch longer. I sent them back and ordered 11 which were too small. The third time I ordered 12. They were a bit long but we fastened them tightly and made sure they worked. They were very well made and super cute, just hard to choose the size. Shipping was very fast and returning was easy so switching was easy. I think it took a little over a week for all the returns to go through and for the third pair to arrive. I really wish they made half sizes for her. If your child has a wider foot, I think it will be easier for you to adjust.
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