<prompt> Height of a newborn doubles at2 months5 months1 year4 years  <response>: Height of a newborn doubles at the age of: 4-4 12 years Height increase pattern in children: Age Height increments 1st year 25 cms per year 2nd year 12 cms per year 3rd year 9 cms per year 4th year 7 cms per year 5th year 6 cms per year 