Average child weights according to UK Child Growth Foundation LMS data2 for a given age adapted for UK ambulance personnel and emergency room whiteboard usage

Age	UK weight (kg)
Newborn	3.5
3 months	6
6 months	8
9 months	9
12 months	10
18 months	11
2 years	12
3 years	14
4 years	16
5 years	19
6 years	21
7 years	23
8 years	26
9 years	29
10 years	32
11 years	35

Legal disclaimer: This table represents estimated values and should only be used as a guide. It is the attending physicians’ responsibility to ensure that these approximations are applicable to each patient they treat on their own individual merits. The publishers and authors do not accept any legal responsibility for any adverse outcome following the use of this chart.