What is the normal birth weight for a newborn baby?

The normal birth weight of a healthy baby generally ranges between 2500 and 4000 grams, with an average around 3000 grams, which is considered a standard weight.

Birth weight is an important indicator of infant growth and development. Typically, a healthy newborn's weight falls between 2500 and 4000 grams; male infants average about 3300 grams, while female infants average about 3200 grams. Babies weighing less than 2500 grams at birth are classified as low birth weight infants, whereas those weighing more than 4000 grams are referred to as macrosomic (large for gestational age). Both abnormally low and high birth weights are considered pathological conditions. Low birth weight may result from maternal malnutrition during pregnancy or placental complications, leading to underweight babies with reduced subcutaneous fat, who are prone to difficulties in maintaining body temperature. Macrosomia is commonly seen in infants born to mothers with diabetes; these babies are more likely to develop hypoglycemia after birth and generally have a higher risk of cardiovascular diseases in adulthood.

After birth, because a newborn's bodily systems are not yet fully developed, careful care is required to help ensure safe passage through the neonatal period.