2-3 Years Kids choose size 100,website size is 2T-3T,Recommend for 100cm height kids.
4 Years Kids choose size 110,website size is 4T,Recommend for 110cm height kids.
5Years Kids choose size 120,website size is 5,Recommend for 120cm height kids.
6Years Kids choose size 130,website size is 6,Recommend for 130cm height kids.
7-8Years Kids choose size 140,website size is 7-8,Recommend for 140cm height kids.
9-10Years Kids choose size 150,website size is 9-10,Recommend for 150cm height kids.
The size in the tablet such as 100,that means for 100cm height kids,not means the dress longth,about the dress longth ,please check the tablet details,that is just the modle shows,if your think will be too short,your can choose a bigger size,