Lightweight Kids T-shirt: The answers are the ancestors

Size (cm)	2-4	4-6	6-8	8-10	10-12	12-14
Width	33.5	35	36.5	39	42.5	46
Height	39	44	49	54	59	64

Size (inch)	2-4	4-6	6-8	8-10	10-12	12-14
Width	13.2	13.7	14.3	15.3	16.7	18.1
Height	15.3	17.3	19.3	21.2	23.2	25.2

To get good measurements, lay the shirt (preferably the one you love) on a flat, hard surface, then if there are any creases, smooth them out as much as possible

Width: place the ruler from the bottom of the sleeve and measure the width stopping under the other sleeve.

Height: measure from the highest point of the shoulder (top of the collar) to the bottom of the shirt.