The average size of a baby at birth is about 19 to 20 inches (48 to 51 centimeters) in length and weighs around 7 to 7.5 pounds (3.2 to 3.4 kilograms). Normal length can vary from about 18.5 to 21 inches (47 to 53 centimeters), and normal weight ranges from about 5.5 to 9.5 pounds (2.5 to 4.3 kilograms). These values represent full-term babies born between 37 to 42 weeks of pregnancy. Here is a concise breakdown:
- Average length: Approximately 19.7 inches (50 cm) at birth.
- Average weight: Around 7 to 7.5 pounds (3.2 to 3.4 kg).
- Normal length range: 18 to 22 inches (45.7 to 56 cm).
- Normal weight range: 5.5 to 9.5 pounds (2.5 to 4.3 kg).
These measurements reflect typical newborn size but individual babies can be smaller or larger while still being healthy.
