Q:

How much should a 2-year-old weigh?

A:

The average weight of a 2-year-old girl is 26.5 pounds, while the average weight of a 2-year-old boy is 27.5 pounds. A child's height varies alongside his body weight, so it is important to find both measurements to calculate a healthy weight using the body mass index.

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BMI is a measurement of body fat percentage. To calculate one's BMI, his weight in kilograms must be divided by the square of his height in meters. If using American measurements, ounces and fractions must be converted to decimal values. Then, the weight in pounds is divided by the squared height in inches, and this number is multiplied by 703. Children's BMI calculators differ slightly from those for adults. Age and sex is taken into consideration, as body fat differs between female and male children.

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The average weight of a 7-month-old baby is 17.4 pounds. Babies this age are an average of 26.5 inches. Additional milestones for babies this age include being able to sit up independently.

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The average weight for a 14-month-old is about 22 pounds, which is in the 50th percentile. The typical range for a 14-month-old baby is anywhere from 19 to 27 pounds, according to Healthy Families BC.

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The average weight for a 5-month-old baby is around 16 pounds for a boy and 14 1/2 pounds for a girl. Typically a baby should double its birth weight by 5 months of age.