Gugguu clothing sizes are presented by centimeters, ie. size 116 is fit for a child who is 116 centimeters tall. We recommend choosing the size based on the child's height. If the child's height is between two sizes, we recommend choosing the larger size. To ensure longer wear time, the sleeves and pant legs in Gugguu clothes are a bit longer so that they can be turned to make them shorter. One inch is 2.54 centimeters.