Typical measurements by age for dress at knee-length is:

Hi Cholil,

Yes, the height is all the body, from foot to hair. The dress would be shorter. I have attached a measurement guide for children dresses just in case you need it, as well as a height chart for US girls if that helps (Height meaning from the top of the head to the bottom of the foot).

Also, if it helps, the typical length of a knee-length dress for each age is:

Much Thanks and Best Regards,

oops. Sent without measurements. 



Typical measurements by age for dress at knee-length is:
Size:  length (cm)
2-3 years     66
4-5 years      70
6-7 years     75
8-9 years      79

10-12 years      83

Typical measurements of dress below knee:
Size:  length (cm)

2-3 years    68.5

4-5 years    75.5
6-7 years    84

8-9 years     91

10-12 years    98

Typical measurement of full-length or floor length dress:

Size:     Full length of dress from shoulder to bottom (cm.):

80 (2-3 years)

90  (4-5 years)

100  (6-7 years)

110 (8-9 years)

120 (10-12 years)

Hope the information helps as a rough guide. Thank you!

Much Thanks and Best Regards,