average baby weights by month
Your baby will continue to grow rapidly during these months. The typical eight-month-old boy weighs between 17.5 and 22 pounds (8 to 10 kg). Girls tend to weigh half a pound less. By his first birthday, the average child has tripled his birth weight and is 28 to 32 inches (71 to 81 cm) tall. Head growth between eight and twelve months slows down a bit from the first six months. Typical head size at eight months is 17 1â2 inches (44.5 cm) in circumference; by one year, itâs 18 inches (46 cm).