Average weight for age (WHO 2007)

AgeBoysGirls
Birth3.3 kg3.2 kg
1 Month4.5 kg4.2 kg
2 Months5.6 kg5.1 kg
3 Months6.4 kg5.8 kg
4 Months7.0 kg6.4 kg
5 Months7.5 kg6.9 kg
6 Months7.9 kg7.3 kg
7 Months8.3 kg7.6 kg
8 Months8.6 kg7.9 kg
9 Months8.9 kg8.2 kg
10 Months9.2 kg8.5 kg
11 Months9.4 kg8.7 kg
12 Months9.6 kg8.9 kg
13 Months9.9 kg9.2 kg
14 Months10.1 kg9.4 kg
15 Months10.3 kg9.6 kg
16 Months10.5 kg9.8 kg
17 Months10.7 kg10.0 kg
18 Months10.9 kg10.2 kg
19 Months11.1 kg10.4 kg
20 Months11.3 kg10.6 kg
21 Months11.5 kg10.9 kg
22 Months11.8 kg11.1 kg
23 Months12.0 kg11.3 kg
2 Years12.2 kg11.5 kg
3 Years14.3 kg13.9 kg
4 years16.3 kg16.1 kg
5 years18.3 kg18.2 kg
6 years20.5 kg20.2 kg
7 years22.9 kg22.4 kg
8 years25.4 kg25.0 kg
9 years28.1 kg28.2 kg
10 years31.2 kg31.9 kg