The average weight of a 2 month old baby varies and there is a normal spectrum. The data points I list below are for the 50% percentile range the average 2 month old. In addition to the text below outlining the average weight and length (height) for a two month baby there are also graphs below with data for babies between the ages of newborns and 36 months old.
Average Weight of a 2 Month Old Baby:
Average Weight of a 2 Month Old Baby:
- Average weight of a 2 month old baby girl is about 11.25 pounds or 5.2 kilograms
- Average weight of a 2 month old baby boy is about 11 pounds or 5 kilograms
Average Length of a 2 Month Old Baby:
- Average length for a 2 month old baby boy is about 58 centimeters or 23 inches.
- Average length for a 2 month old baby girl is 22.5 inches or 56 centimeters.
Since you're now well versed in the average weight of a 2 month old baby feel free to read up on the:
You can click on the charts below to enlarge them:
Height Weight Chart for Baby Girls

Height Weight Chart for Baby Boys
