Average Weight of a 1 Year Old

While the average weight of a 1 year old can vary across nationalities and certainly taller (longer) babies will naturally weight more than shorter babies the average weight for a 1 year old boy is roughly 16 pounds and the average weight for a 1 year old girl is about 22 pounds.
  • 1 year old boy = 18.5 pounds
  • 1 year old girl = 22 pounds
The numbers listed above are median weighs and there is a normal wide spectrum of healthy weights for babies this age. A large part of the reason that baby girls weigh more than baby boys at this age is because generally speaking girls are normally slightly taller (longer) at this young age. The average height for a 1 year old girl is about 28 inches and the average height for a 1 year old boy is roughly 26 inches.

For more information pertaining to the median height and weight of children from birth to 36 months old take a look at the charts below. Feel free to click on the charts below to enlarge them so that they are easier to read.

Height Weight Chart for Baby Boys
Height and weight chart for baby boys.
Height Weight Chart for Baby Girls
Height and weight chart for baby girls.