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Growth Charts

The Maternal and Child Health Service uses percentile growth charts to compare your child's height and weight to other children of the same age to help assess their development.

When reading the percentile charts if a baby is on the 10th percentile for height and weight, it means that 90% of babies are taller and heavier than they are. A baby on the 80th percentile for height and weight is taller and heavier than 80% of other babies.

Growth charts for 0 to 24 months old

Maternal and Child Health nurses use percentile charts from the World Health Organisation for children between 0 and 24 months of age, which measure:

  • Boys: weight for age and length
  • Girls: weight for age and length
  • Boys and girls head circumference

Boys 0 to 24 months - weight and length

Boys: weight for age and length (PDF - 415Kb) (pdf - 414.84kb)

Girls 0 to 24 months - weight and length

Girls: weight for age and length (PDF - 415Kb) (pdf - 414.98kb)

Boys and girls 0 to 24 months - head circumference

Boys and girls head circumference (PDF - 182Kb) (pdf - 182.24kb)

Growth charts 2 to 18 years

Maternal and Child Health nurses use percentile charts from the Centre for Disease Control for children between 2 and 18 years of age, which measure height, weight and Body Mass Index (BMI)

BMI is calculated using height and height measurements, then used to compare a child’s weight relative to height with other children of the same age and gender, using BMI percentile charts.  The following equation can be used to determine BMI:

BMI = Weight (kg) / height (m) Height (m)

Boys 2 to 18 years - weight, length and BMI

Boys :  Weight for age and length and body mass index (BMI) (PDF - 498Kb) (pdf - 497.85kb)

Girls 2 to 18 years - weight, length and BMI

Girls :  Weight for age and length and BMI (PDF - 499Kb) (pdf - 498.76kb)

More information

Your Maternal and Child Health Service Visits – information about what you can expect when you see your Maternal and Child Health nurse.