WEIGHT

1. Weight loss in first few days: 5%-10% of birth weight

2. Return to birth weight: 7-10 days of age

  Double birth weight: 4-5 mo

  Triple birth weight: 1 yr

  Quadruple birth weight: 2 yr

3. Average weights:

    3.5 kg at birth

    10 kg at 1 yr

    20 kg at 5 yr

    30 kg at 10 yr

4. Daily weight gain:

    20-30 g for first 3-4 mo

    15-20 g for rest of the first yr

5. Average annual weight gain: 5 lb between 2 yr and puberty (spurts and plateaus may occur)

HEIGHT

1. Average length: 20 in at birth, 30 in at 1 yr(بدو تولد ۵۰سانتی متر و ۷۵ سانتی متر در ۱ سالگی)

2. At age 3 yr, the average child is 3 ft tall(۹۰ سانتی متر)

3. At age 4 yr, the average child is 40 in tall (double birth length)۱۰۰ سانتی متر

4. Average annual height increase: 2-3 in between age 4 yr and puberty

HEAD CIRCUMFERENCE (HC)

1. Average HC: 35 cm at birth (13.5 in)

2. HC increases: 1 cm/mo for first yr (2 cm/mo for first 3 mo, then slower); 10 cm for rest of life