Your Child’s Size and Growth Timeline

Lots of parents wonder whether their child is larger or smaller than other kids the very same age.

To offer you a benchmark, here are the values from the 25th percentile to the 75th percentile for weight and height– suggesting that half of kids fall within these varieties. A quarter of kids fall above these numbers and a quarter of kids listed below them.

At each well-child see, the doctor will weigh and determine your child and tell you his height and weight percentiles. (You can likewise compute them yourself, using our Growth Percentile Calculator.) Talk with the doctor if you have any concerns about your child’s growth.

The information below comes from the World Health Organization for children under age 2 and the United States Centers for Disease Control and Prevention for children age 2 and older.

Average Baby’s Height and Weight Chart from 0 to 12 Months

Birth
Boys
Girls
Weight
6.7 – 8.1 pounds
6.5 – 7.8 pounds
Length
19.1 – 20.1 inches
18.9 – 19.8 inches
3 months
Boys
Girls
Weight
13.0 – 15.2 pounds
11.8 – 14.0 pounds
Length
23.6 – 24.7 inches
23.0 – 24.1 inches
6 months
Boys
Girls
Weight
16.2 – 18.8 pounds
14.8 – 17.5 pounds
Length
26.1 – 27.2 inches
25.3 – 26.5 inches
9 months
Boys
Girls
Weight
18.2 – 21.1 pounds
16.7 – 19.7 pounds
Length
27.7 – 28.9 inches
27.0 – 28.3 inches

Average Toddler’s Height and Weight Chart from 12 to 21 Months

12 months
Boys
Girls
Weight
19.8 – 22.9 pounds
18.2 – 21.4 pounds
Height
29.2 – 30.5 inches
28.5 – 29.8 inches
15 months
Boys
Girls
Weight
21.1  – 24.5 pounds
19.5 – 23.0 pounds
Height
30.5 – 31.8 inches
29.9 – 31.2 inches
18 months
Boys
Girls
Weight
22.4 – 26.0 pounds
20.8 – 24.5 pounds
Height
31.7 – 33.1 inches
31.0 – 32.5 inches
21 months
Boys
Girls
Weight
23.6 – 27.5 pounds
22.0 – 26.0 pounds
Height
32.7 – 34.3 inches
32.1 – 33.8 inches

Average Preschooler’s Height and Weight Chart from 2 to 4 Years

24 months
Boys
Girls
Weight
24.8 – 28.9 pounds
23.3 – 27.5 pounds
Height
33.8 – 35.4 inches
33.2 – 34.9 inches
27 months
Boys
Girls
Weight
27.0 – 31.2 pounds
25.8 – 30.0 pounds
Height
34.1 – 36.1 inches
33.7 – 35.6 inches
30 months
Boys
Girls
Weight
27.8 – 32.2 pounds
26.7 – 31.1 pounds
Height
35.0 – 37.0 inches
34.6 – 36.6 inches
33 months
Boys
Girls
Weight
28.6 – 33.2 pounds
27.6 – 32.3 pounds
Height
35.8 – 37.8 inches
35.4 – 37.4 inches
36 months
Boys
Girls
Weight
29.5 – 34.3 pounds
28.4 – 33.4 pounds
Height
36.5 – 38.6 inches
36.0 – 38.1 inches
4 years
Boys
Girls
Weight
33.3 – 39.1 pounds
32.2 – 38.5 pounds
Height
39.2 – 41.5 inches
38.6 – 41.0 inches

Average Big Kid’s Height and Weight Chart from 5 to 8 Years

5 years
Boys
Girls
Weight
37.5 – 44.7 pounds
36.3 – 44.0 pounds
Height
41.7 – 44.2 inches
41.3 – 43.8 inches
6 years
Boys
Girls
Weight
41.9 – 50.6 pounds
40.8 – 50.0 pounds
Height
44.2 – 46.9 inches
43.9 – 46.7 inches
7 years
Boys
Girls
Weight
46.5 – 56.8 pounds
45.6 – 56.6 pounds
Height
46.6 – 49.5 inches
46.5 – 49.4 inches
8 years
Boys
Girls
Weight
51.5 – 63.6 pounds
50.9 – 64.3 pounds
Height
48.9 – 52.0 inches
48.8 – 51.9 inches

 



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