I need to know the circumference of a baby's head at 6-12 months and I don't have access to a small child. I've had a look online but the figures seem to range from 15" to 19" which seems like a huge range. I'd kinda like to know if the average is closer to 16" or 18" since it will make a big difference. I know we've had a few 'new father' posts recently - any slightly older parents out there with a tape measure? Ta muchly!