Shoe size for 12 month old

You could take a Robeez type shoe.. They aren't size specific but rather 0-6, 6-12, 12-18 month size. They are also good if you don't know whether she has a wide or narrow foot.. Target sells a cheaper version for around $13. The 6-12 would probably fit. Our daughter was 29 1/2 in and almost 19 lbs at 12 months and was just getting into a size 3 in other type shoes...