What Is The Average Weight For A 6 Month Old Baby Girl?

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21 Answers

Danielle Joynson Profile
There is no universally or even nationally agreed average weight for babies at six months of age, although most people in the know seem to put the figure at around 16lbs for girls of this age, with 14 - 21lbs being the healthy range. Boys tend to be a couple of pounds heavier but there are vast individual differences between babies as there are with adults. For most babies there is a decline in the rate of growth when they reach 6 months old, whereas previously their weight would increase by around 1.5-2lbs per month (700-900g), after 6 months the increase drops to a more moderate 1-1.25lbs per month (450-600g). This rate continues until the infant reaches the age of one year, at which point it slows slightly more.
As a rule of thumb, at four months of age most babies weigh about twice what they did at birth, and by eight months of age around 2.5 times as much. This rule highlights the importance of birth weight as a factor in the weight of a baby at 6 months old, for example a premature baby of typical low birth weight will probably still be smaller than full-term peers by 6 months. The important thing is that there is a steady increase in weight, and consistent growth trends are what doctors are interested in for assessing a baby’s health, rather than one-off measurements. 
Other factors that will affect a 6 month-old’s weight include the amount and quality of food being given to her (for example, breast milk versus formula, or whether or not she’s started on solid foods yet), genes inherited from her parents, overall health and the functioning of hormones that control aspects of growth.
Ceara Mckeag Profile
Ceara Mckeag answered
My daughter was 5LBS 5OZs at birth. She was 4wks premature. She is now 6 months old and weighs 16LBS 4.5OZs. And is 65CM in length!!! Very healthy baby lol. Every ones baby varies. Just as long as they are eating and appear healthy I would not worry about the little one but if you did have concerns just ask at your baby clinic or your doctor to put your mind at ease :)
Kymm Profile
Kymm answered
Every babies metabolism is different. I'm sure your baby is just fine. It also depends on what she eats and how much she eats and what she weighed at birth. If you've recently started her on cereal or babyfood that can contribute to faster weight gain.
Anonymous Profile
Anonymous answered
My daughter weighed 7 lbs 10oz at birth, now at 6 months she weighs 20lbs. Is that bad, b/c my doctor seems to be concerened?
Anonymous Profile
Anonymous answered
It sounds quite average. It could depend on what her birth weight was though.
Anonymous Profile
Anonymous answered

All these babies sound perfect, they are growing at their own pace.

I have 3 children 2 boys, and girl although each baby I had was born bigger - they have grown at a slower pace.

My oldest was 7lb 10 and by 6 months he was 17lb 10, and my second son was 8lb 1, and by 6 months he weighed 16lb 4 and my daughter was 8lb 11 and she is now 6 months and is 14lb.

Anonymous Profile
Anonymous answered
My daughter was 7.11 when she was born and now at 6 months weighs 23.4.  She has been off the charts every month but my doctor says that she is doing great.
Anonymous Profile
Anonymous answered
My son is 15 months old, and he weight 19 pounds? Is it normal. He was 5.9 pounds at birth.
carrie Profile
carrie answered
It depends on birthweight and if she is on solid food yet. pediatrics.about.com has height and weight charts. My son has been off the charts in height and weight since he was born. My daughter though is tiny and only in the 10th percentile. She is almost 3 and only weighs about 26 pounds. My son weighed that much before he was 1. But your dr will let you know if your daughter is fine.
Anonymous Profile
Anonymous answered
I don't think so...I think that is under weight by a lot depending on how much the child weighed when it was born...I have a 6 month old daughter and she weighs 16lbs 7oz...and she is in the 50th percentile for her weight...might want to check with your doctor and see if you can't get the formula with the added cereal to help gain weight!! Good luck!
Anonymous Profile
Anonymous answered
My daughter was 6.4lbs at birth, small but healthy. She just had her 6 month check up and now weighs 14.5lbs. Is that norm, her doctor seemed a little concerned?
Anonymous Profile
Anonymous answered
At birth she weight 7lbs 12ozs, and at 6 months her weight is 15lbs...is that normal..
Anonymous Profile
Anonymous answered
My little girl was 6lb 12oz when she was born and at her 6month check she weighs 13lb 10oz dr was only concerned that she had only put on 4oz in 6wks
Anonymous Profile
Anonymous answered
My baby was born at 9.2 but lost weight during her time in hospital, she is now 6 months and weighs 15.8

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