BMI Calculators?: Does anyone know of a... - Weight Loss Support

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BMI Calculators?

Rigpig profile image
18 Replies

Does anyone know of a good BMI calculator? The one's I have tried say that my weight should be around 88kg for a healthy BMI. I'm 6'2" and have a large frame, I'd look positively ill at 88KG's I'm currently at 121 KG and have set a 12 month goal to be at 105 KGs. I have been at 100 KG's in the past and feel that that's my ideal weight although my friends and family think that I look too gaunt when I go below 110.

My BMI is currently 34.4 at what point will I not be classed as obese? :-)

Thanks

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Rigpig profile image
Rigpig
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18 Replies
PippiRuns profile image
PippiRuns6kgRestart Nov 2023

This one nhs.uk/live-well/healthy-we...

PippiRuns profile image
PippiRuns6kgRestart Nov 2023

Sorry, that went too fast. Your BMI is going to be the same whichever calculator you use but not all of them have the same definition of healthy. Don’t worry too much about the number. Measure yourself around the waist instead, that’s also a pretty good indicator of how healthy your size is. See here nhs.uk/common-health-questi...

Rigpig profile image
Rigpig in reply to PippiRuns

Thanks, I like the waist measurement info. I took all of my measurements when I started C25K so I'll monitor this regularly as well as my weight :-)

Cosmo501 profile image
Cosmo501Restart May 2024

I’m passing the buck a bit here... but S11m , I’m sure you posted some really useful information on alternative ways to work out an ideal weight? I just can’t find it! Perhaps I’ve imagined it?!

S11m profile image
S11m in reply to Cosmo501

Hi Cosmo501 , thanks for tagging me.

Enxo profile image
Enxo

I’m meant to be 84! That means I’ve got to loose 50kg! Jog on!

Rigpig profile image
Rigpig in reply to Enxo

I know right!

S11m profile image
S11m

Hi, Rigpig

I was similar to you:

19½ Stone =125kg,

6' 3",

BMI 35ish

WHO & NHS BMI is nonsense for tall, muscular, old (I am 70) people.

SBMI is better for old people - but still does not take lean mass into account.

Yes, PippiRuns , waist measurement is a good indication of obesity, fatty liver, etc, and my waist is half my height, as recommended for males.

I have now been stable at 15 stone, 95kg, 15% body fat for three months.😇

See:

healthunlocked.com/fasting-...

Rigpig profile image
Rigpig

Thanks, the SBMI makes a lot more sense and the article is interesting.

S11m profile image
S11m in reply to Rigpig

SBMI is better - but it does not give you much credit for height.

You could use the US Navy system (tape measure, waist and neck) or get yourself a fat calliper.

Rigpig profile image
Rigpig in reply to S11m

I use Myfitnesspal primarily as a food diary, I've recorded all of those body measurements in there and I'm going to update them once a month.

moreless profile image
morelessAdministrator7 stone

Hi and welcome, Rigpig and Enxo :)

You've had lots of response to your question and I'd just like to say that being within the guidelines of any chart, or calculator for weight isn't a fully accurate indicator of health, which should always be your aim. If you eat correctly and exercise regularly, to your ability, your body will be it's own guide of what it's healthy weight will be.

Follow this link to our chat thread and a list of all the activities we run. We've found active participation to be key to success, especially with our weigh-ins and Daily Diary.

healthunlocked.com/nhsweigh...

To make navigating the forum easier, we've put all the information you'll need in a newbie pack and here's the link

healthunlocked.com/nhsweigh...

Please take the time to read it carefully, so that you're able to enjoy everything that we have on offer.

We ask that you also read this important information about internet privacy and security.

healthunlocked.com/nhsweigh...

Wishing you all the best :)

Rigpig profile image
Rigpig in reply to moreless

Thanks, I will read through this and will definitely participate.

Hi Rigpig! The NHS BMI calculator is by far the most accurate. Try that one 🤗🤗

Skende profile image
Skende

30 is the cutoff point for obesity. Anything until 34.9 is type I or mildy obese. I also have questions about this calculator. I know that in America, the average female falls into the obese type 1 category. I don't know where you live.

The calculator that you used is the only one I know of.

Rigpig profile image
Rigpig in reply to Skende

I’m in New Zealand, I have no problem being told that I’m obese by these calculators which is why I’m here 😀 I just think that at 88kg or 194lbs I would look very thin. I’m 6’ 3”

DucPaulo profile image
DucPaulo in reply to Rigpig

To show you misleading BMI calculators can be, see what you you put in the measurements for Dan Carter (probably the best fly half ever) and he's as fit as the proverbial Butchers Dog.

Height 1.78 m, Weight 96 kg, which I think would put him at 30.

From the photo in the link below he looks amazing,

encrypted-tbn0.gstatic.com/...

martinwinlow profile image
martinwinlow

Unfortunately, BMI is what it is; a very blunt instrument designed for 'average' people to give a very rough estimate of their state of health as far as body fat is concerned. It takes no account of how fit you are (muscle being significantly heavier than fat) and is, IMO, pretty much a complete waste of time.

It appears to have been devised by the same people that still talk about a 'calorie-controlled diet' in the context of losing weight. In the same way, they conflate fat and carbohydrate (the 2 main sources of calories) and believe that limiting these, combined with regular and significant exercise, is the key to effective *weight loss* (emphasis here because I am not talking about other health issues such as high cholesterol, rickets, scurvy or anything else).

I don't deny this sort of approach will work but they are missing the reality of how what we eat affects our bodies and making dieters suffer completely unnecessarily by denying them foods that are all bet completely irrelevant to quickly loosing weight (principally ones containing a lot of fat). And it's not like the evidence for their ignorance is new. We have known the truth since the 60's (research Prof John Rudkin) but the food industry have spent an absolute fortune convincing us otherwise in a fraud that is on a similar scale to Dieselgate... only this fraud also happens to be killing 10's of thousands in the UK every year (let alone the rest of the world).

So, what am I on about? ...Carbohydrates.

Why is the food industry conning us all into eating 'healthy' high carb breakfast cereals, for example? Simple! *MONEY*, and shed-loads of it. They take a cheap-as-chips commodity like maize and in a very simple process convert it into something worth 100 times the value. I wouldn't be surprised if the cereal box cost more than the raw materials. Then they add loads of muck (including sugar and salt to mast the ghastly flavour), put lots of hopelessly misleading guff on the box about 'daily recommended' this and 'portion-size' that to really confuse us. It's only when you critically analyse all this (as Hugh Fearnley-Whittingstall did recently - see BBC's 'Britain's Fat Fight') that you find that most people (children, especially) are actually consuming their entire daily allowance for carb and salt in their very first meal of the day!

It's a complete myth that eating fat makes you fat. It is carbohydrates that rule the roost as far as weight is concerned and so, as soon as I hear a so-called dietician mention the word 'calories' in the context of losing weight, I immediacy ignore them because they are simply talking nonsense.

It's all here in this BBC program;- 'The Truth About Carbs' - dailymotion.com/video/x6layky

Quite why there is not a link to this excellent program on the front page of the NHS' website is a complete mystery. Further more, BBC's iPlayer should also have it available permanently (it dropped off the play list months ago).

Oh, and it's worth mentioning that I came across all this only a few years ago when middle age spread caught up with me and I decided to do something about it. Much of the theory of the low-carb diet was popularised by Dr Atkins and it was a variation of his diet that saw me go from 80kg to 73 in 3 painless months... and I'm still at that weight now.

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