Very low birth weight is defined as less than 1,500 grams or 3 pounds 4 ounces.
Birth weight less than 1,500 grams (3 lb. 5 oz.).
an infant, of any gestational age, who weighs less than 1,500 grams at birth.
Birth weight between 1000 grams (2 lbs, 3 oz) and 1500 grams (3 lbs, 5 oz). (See also: Low Birth Weight (LBW), and Extremely Low Birth Weight (ELBW))
A birth weight less than 1500 grams, or less than 3 pounds, 5 ounces.
a baby born at 30 to 34 week's gestation and weighing between 2 pounds 3 ounces and 5 pounds 8 ounces.
A baby weighing less than 3.3 pounds at birth is considered very low birthweight, and has a much higher risk of illness.
A baby who weighs under 3.3 pounds at birth.