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I thought clothes sizes were for average baby?

40 replies

Iammeltin · 07/08/2025 16:27

My DD is just above 50th centile and weighs 8.9kg and just turned 9 months. 50th centile being average.

However all the baby sizes (Next , George etc), 9-12 age clothes start from 9.5kg.

For her to fit into those, she’d have to be above 75th centile?

OP posts:
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Squishymallows · 07/08/2025 18:28

Iammeltin · 07/08/2025 18:00

How would I know they don’t fit anymore?
she’s tallish but skinny?
Sorry I sound dumb, it’s just my son was chubby and everything was tight around him.
This isn’t the case here so never know when to size up as she’s skinny so never fills the clothes…

You try them on the child

Ginnygi · 07/08/2025 18:33

Iammeltin · 07/08/2025 17:00

According to ChatGPT

A baby is likely to reach 9.5kg around 10-12 months old, though this can vary based on individual growth and gender. At 10 months, the 50th percentile weight for boys is around 9.7 kg and for girls, it's around 8.8 kg, according to Healthline. By 12 months, the 50th percentile weight for boys is around 10.3 kg and for girls, it's around 9.5 kg

so she would be 9.5kg at 12 months??

So why do the 9-12 clothes start from 9.5kg?
majorly confused

Please don't use chat GTP for stuff like this.... I wonder if people using it for most miniscule things now the impact it has on the planet

Ginnygi · 07/08/2025 18:34

Iammeltin · 07/08/2025 18:00

How would I know they don’t fit anymore?
she’s tallish but skinny?
Sorry I sound dumb, it’s just my son was chubby and everything was tight around him.
This isn’t the case here so never know when to size up as she’s skinny so never fills the clothes…

I mean this with no disrespect but are you a young teenage mum?
Do you have social workers that help you with your kids?

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Ginnygi · 07/08/2025 18:41

Ginnygi · 07/08/2025 18:34

I mean this with no disrespect but are you a young teenage mum?
Do you have social workers that help you with your kids?

And I also say this after finding that you are feeding your 9 month old ice cream but are asking people if you should stop feeding them fruit so they don't get used to sweet things... And you also said you were forced feeding your 9 month old.
I found all this stuff within a minute, scared to look for more as I'm terrified. Can you not ask for social services help if you generally don't have a clue about things?

User28473 · 07/08/2025 18:45

Do you know your babies centile for height? HV's don't usually measure that. One of mine was a VERY chubby baby but always in clothe sizes smaller once they were in 9-12, 12-18 and I found it confusing until I measured them and realised their height was way below the 9th centile.

Superscientist · 07/08/2025 18:52

They are loosely based on a 50th percentile boy but there is also variation between brands even when they have the same size range and Asda when I had my daughter had their size guides 0.5kg smaller than other size guides.

I had a small slow growing baby so I tracked her chart to estimate when she would outgrow clothes. She didn't go into 3-6 month clothes until nearly 6 months but then threw a spanner in the works around 18 months when she stopped growing in length and spent just over a year in 9-12 month clothes even though she was over the weights for clothes that still gave weights

I used a mix of Asda which ran small and Sainsbury's that ran big. If there was a change of season or she needed some new clothes and was more than half way between the bottom and top of the size guide I got the replacements from Asda in the size up as they would be likely to fit thereabouts. If she was at the bottom of the range I'd get them from Sainsbury's I knew she wouldn't outgrow them as quickly.

OneNeatBlueOrca · 07/08/2025 18:55

Iammeltin · 07/08/2025 16:30

She still fits into her 6-9 clothing. Not sure when to switch?

Put her in what fits. My sister did this and I didn't understand it.

My niece was bigger than average. She was a very chubby baby
My sister used to crush her into baby clothes based on age rather than weight.
She would wait until the day she turned the next size up to change the clothing sizes.

My niece was exploding out of 6-9 months when she was about 7 months old. My sister wouldn't up the size

Somehowgirl · 07/08/2025 18:59

Iammeltin · 07/08/2025 18:00

How would I know they don’t fit anymore?
she’s tallish but skinny?
Sorry I sound dumb, it’s just my son was chubby and everything was tight around him.
This isn’t the case here so never know when to size up as she’s skinny so never fills the clothes…

Your post is cracking me up OP, you are waaay overthinking this.

My son has always been short in the legs and long in the body. He has a smaller size than his age for the bottoms and wears his age size or even bigger on top. That’s just the way he’s built 🤷🏻‍♀️ For pyjamas I buy bottoms only and he just wears plain T-shirts on top to account for the size difference. As a baby I avoided footed clothes and went for footless onesies etc.

Just put the clothes that fit onto your child.

namechangeGOT · 07/08/2025 19:02

My son was 10lb 2 at birth. He wore 6-9 months from birth!

Ignore the labels. Imagine you cut them out and can’t see them at all, that’s how unimportant they are. You dress her in the clothes, any sized clothes, that fit her. It’s obvious when they don’t fit because she’ll either not be able to stretch her legs properly, you’ll not be able to popper her vests up, or the sleeves will ride up her forearms.

You’re concentrating on month sizes when they are totally irrelevant.

SpinnyDinos456 · 07/08/2025 19:06

@Ginnygi no need to be unkind. Plenty of us mums have had moments of doubting ourselves over the most straightforward things. And weaning etc is extremely stressful. I have asked plenty of dumb questions in my one year as a mother so far. Let's keep it supportive.

Livpool · 07/08/2025 19:11

My friend’s daughter has just turned 3 and is still in 12-18 months clothes - she is a titch. DS was a chubby little boy. I just bought new sizes when the older ones no longer fit.

IIRC - Next were always on the bigger side and George and M&S a bit smaller

Ginnygi · 07/08/2025 19:17

SpinnyDinos456 · 07/08/2025 19:06

@Ginnygi no need to be unkind. Plenty of us mums have had moments of doubting ourselves over the most straightforward things. And weaning etc is extremely stressful. I have asked plenty of dumb questions in my one year as a mother so far. Let's keep it supportive.

There's dumb questions but there's also questions that make you wonder if the kids are looked after. Where do you draw the line? I know someone who fostered kids as the mum was deemed to be too clueless but social services helped her, she got the kids back and all was well. It could've ended quite differently otherwise.
Not saying it's the same situation but I find it really alarming.

Paaseitjes · 07/08/2025 19:54

We live somewhere that does sizes by cm length. They're still inconsistent! Mine's in 56, 62 and 72cm all at the same time even though length is totally quantative!

Superscientist · 07/08/2025 20:22

Somehowgirl · 07/08/2025 18:59

Your post is cracking me up OP, you are waaay overthinking this.

My son has always been short in the legs and long in the body. He has a smaller size than his age for the bottoms and wears his age size or even bigger on top. That’s just the way he’s built 🤷🏻‍♀️ For pyjamas I buy bottoms only and he just wears plain T-shirts on top to account for the size difference. As a baby I avoided footed clothes and went for footless onesies etc.

Just put the clothes that fit onto your child.

Good point on various sizing across the body.
My daughter is short in the body, longer in arms and legs. She would be in vests long after the size guides.
She's just turned 5 and still wears 18-24 month for short sleeved t shirts but is 2-3 or 3-4 for long sleeved vests and 3-4 for trousers/leggings

Ddakji · 07/08/2025 20:24

Why not just stick her in her brother’s outgrown stuff?

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