\\\\\\\\it is more correct to compare with the height:
(Unit:CM)
110=3T:Top length=43 bust=88 Skirt length=33, fits for: 90-100cm height / 3 Years Old
120=4T:Top length=46 bust=92 Skirt length=35, fits for: 100-110cm height / 4 Years Old
130=5T:Top length=49 bust=96 Skirt length=37, fits for: 110-120cm height / 5 Years Old
140=6T:Top length=52 bust=100 Skirt length=39, fits for: 120-130cm height / 6 Years Old
150=7T-8T:Top length=55 bust=104 Skirt length=41, fits for: 130-140cm height / 7-8 Years Old
160=9T-10T:Top length=58 bust=108 Skirt length=43, fits for: 130-140cm height / 9-10 Years Old
Note:
1.There is 2-3% difference according to manual measurement.(1 inch = 2.54 cm)
2.All measurement in cm, please note 1cm=0.3937ch, 1 inch=2.540cm
3.Please check the figures carefully and order the right size, don't completely depend on the " age advice". It's just for reference.