What size is the baby at 1 month of age?

Length: 19-20 inches (48-51 cm)

Weight: 8-10 pounds (3.6-4.5 kg)

Head circumference: 13.5-14.5 inches (34-37 cm)

Remember, these measurements are averages, and every baby grows at their own pace. If you have concerns about your baby's growth, talk to your doctor or nurse.