New Unicorn Girls Dress Summer High Quality Christmas Birthday Party Princess Dresses For 4 5 6 7 8 9 10 11 12 Years Kids Dress

it is more correct to compare with the height:
Unit：CM
110=4T ：
length=85 bust=64 shoulder=24 waist=60
120=5T：
length=90 bust=68 shoulder=25 waist=64
130=6T：
length=95 bust=72 shoulder=26 waist=68
140=7T/8T：
length=100 bust=76 shoulder=27 waist=72
150=9T/10T：
length=105 bust=80 shoulder=28 waist=76
160=11T/12T：
length=110 bust=84 shoulder=29 waist=80
Size:
110 fits for: 100-110cm height / 4 Years Old
120 fits for: 110-120cm height / 5 Years Old
130 fits for: 120-130cm height / 6 Years Old
140 fits for: 130-140cm height / 7-8 Years Old
150 fits for: 140-150cm height / 9-10 Years Old
160 fits for: 150-160cm height / 11-12 Years Old
Note:
1. There is 2-3% difference according to manual measurement (1 inch = 2.54 cm)
2.All measurements in cm, please note 1cm = 0.3937ch, 1 inch = 2.540cm
3. Please check carefully the figures and order the right size, don't completely depend on the "age advice". It's just for reference.