Weight, Obesity, and BMI

April 25th, 2008

Did you know 1 out of 3 Americans is obese? 2 out of 3 are overweight? Yep, according to a 2007 CDC study. And according to a 2007 worldwide study, 40% of adults are overweight, with 25% being obese. Holy crap. More people are obese than underweight worldwide (WHO 2000). And don’t forget the childrens – 15% of those ages 6-19 are overweight according to 2000 CDC data, triple what it was in 1980 (more stats).

But how much do you have to weigh to be considered obese? Well, you are considered obese if you have a BMI greater than 30, and overweight if its greater than 25.

What is BMI? Body Mass Index. It’s the most popular, accurate way (heh, way, pun) to measure obesity (sort of). It’s a simple formula based on your weight (lbs or kg) and height (inches or meters). According to CDC, the BMI formula is 703 x (lbs) / (inches^2), or if you are from metric land, its just weight (kg) / [height (m)]2. For me, I have a 23.7 BMI, thats 703 x 175 lbs / (72 inches)^2 = 23.7, or 79.4 kg / (1.83 meters)^2 = 23.7 in metric talk. Heres my BMI results from this BMI Calculator, which gives you a nice chart like this:

BMI Weight Range (6′ tall) Weight Status
18.4 and Below 135.7 lbs and Below Underweight
18.5 – 24.9 136.4 – 183.6 lbs Normal
25.0 – 29.9 184.4 – 220.5 lbs Overweight
30.0 – 34.9 221.2 – 257.4 lbs Obese (moderate)
35.0 – 39.9 258.1 – 294.2 lbs Obese (severe)
40.0 and Above 295.0 lbs and Above Obese (very severe)

If you’re 20 years or older, its the same for men and women. Here’s a BMI Calculator for those under 20. If you ain’t feeling this math or the BMI thing, don’t worry – I crunched the numbers and made this reference chart.


Weight Chart, Over 20 years old

Height Normal Weight Range Obese
5 ft, 0 inches 94.7 – 127.7 lbs 153.3 or more
5 ft, 1 inches 97.9 – 132.0 lbs 158.5 or more
5 ft, 2 inches 101.1 – 136.4 lbs 163.7 or more
5 ft, 3 inches 104.4 – 140.8 lbs 169.0 or more
5 ft, 4 inches 107.7 – 145.3 lbs 174.5 or more
5 ft, 5 inches 111.1 – 149.9 lbs 179.9 or more
5 ft, 6 inches 114.6 – 154.5 lbs 185.5 or more
5 ft, 7 inches 118.1 – 159.3 lbs 191.2 or more
5 ft, 8 inches 121.6 – 164.1 lbs 196.9 or more
5 ft, 9 inches 125.2 – 168.9 lbs 202.8 or more
5 ft, 10 inches 128.9 – 173.8 lbs 208.7 or more
5 ft, 11 inches 132.6 – 178.9 lbs 214.7 or more
6 ft, 0 inches 136.4 – 183.9 lbs 220.8 or more
6 ft, 1 inches 140.2 – 189.1 lbs 227.0 or more
6 ft, 2 inches 144.1 – 194.3 lbs 233.2 or more
6 ft, 3 inches 148.0 – 199.6 lbs 239.6 or more
6 ft, 4 inches 152.0 – 204.9 lbs 246.0 or more
6 ft, 5 inches 156.0 – 210.4 lbs 252.5 or more
6 ft, 6 inches 160.1 – 215.9 lbs 259.1 or more
6 ft, 7 inches 164.2 – 221.4 lbs 265.8 or more
6 ft, 8 inches 168.4 – 227.1 lbs 272.6 or more

Notes:

I’m not sure I trust CDC entirely. This 2006 CDC study said no change in American obesity since 2003-2004. But by their own numbers, obesity went up 2% overall, almost a 7% increase (males up 7.1% from 31.1% to 33.3%, females up 6.3% from 33.2% to 35.3%). At that rate the number of obese people will more than double in 11 years. Yes, no-increase means double in 11 years. Hello? Is this the new Bush-Era Science?

  1. Dwayne
    June 4th, 2010 at 11:07 | #1

    Got to watch your weight! Not only for the sake of being healthy but it can also mess with you in other ways. My Insurance Expert told me I could have fallen into a better plan if I lost some weight. It wouldn’t save me tons of money and make me rich by any means, but saving is saving.

  2. Tony
    August 4th, 2012 at 14:53 | #2

    How can 137 lbs for a 6ft man be “normal”?? Sounds incredible!!!
    Way too skinny! I was as low as 160 lbs and looked VERY skinny!

  3. tyler
    February 17th, 2015 at 11:31 | #3

    i totally agree i am 6 foot too and am about 200 pounds i feel like i am at a good weight.

  4. blair godlesky
    April 15th, 2015 at 11:29 | #4

    im 6 foot 3 inches and also a bean pole how am i class 1 obese? i weigh 242 and im obese?! im tall and bone like nothing jiggles so how the hell am i obese?! please answer this….for i am confused

  5. July 28th, 2015 at 21:48 | #5

    Too be quite honest I am built rather stocky and if I was in the weight it says I should be I would look like bone I am nearly six feet and overweight but not obese and it says I should be 7 or 8 feet to not be obese… This probably applies to a skinny build wrap your index finger and thumb of your non dominant hand around your dominant(writing hand) wrist and if your fingers overlay your a skinny build… If your fingers touch or barely touch your medium build… If they don’t touch or are nowhere near touching your stock built like me… So it does matter on your build hope this helps

  6. Deb
    August 3rd, 2015 at 08:40 | #6

    It’s impossible that a 6’7 young male’s highest weight should be 221.as a normal weight and that 265 is overweight . My son is a 6’7, 300 lb . football player and in 11th grade. No one has ever said nor does he look overweight. However at 221 he would look anorexic. Certainly bone structure must factor into this somehow.

  7. Raquel Minard
    August 11th, 2015 at 19:56 | #7

    I’m 6 feet tall and weigh 120. Apparently I’m underweight….. I had no idea.

  8. clark
    September 3rd, 2015 at 23:22 | #8

    Yal people that work out in the gym a lot can be just as unhealthy being 6 ft 210 lbs of muscle mass. More power to you if plan on doing work out plans same from when your 20 to your dead. Other wise all your muscle turns to fat… I agree in being healthy but not with weights and bulking up to look like Roman carved statue. .. just kyak walk run swim stay active you will be alright.. I assume all yal people confused work with weights every day

  9. Collin
    September 10th, 2015 at 22:42 | #9

    As guy who is 190 and 6’8″ I can see how this is confusing. It really has to do with fat ratios. If you are 6′ with 20% fat obviously that’s bad. I’ve been as high as 245 but that wasn’t healthy either because I didn’t build any muscle with that weight

  10. Stephanie
    September 22nd, 2015 at 09:24 | #10

    I have a nephew that is 30 years old, 5’11” and wears a 4x in clothes. His immune system is compromised. How do I get him to change.

  11. Stephen ray powell
    November 17th, 2015 at 22:15 | #11

    Your numbers seem off. 1 in 3 obese, 2 in 3 overweight. I guess I don’t count…..

  12. rob
    January 1st, 2016 at 13:44 | #12

    well I’m 6’0 and 205 but i currently goto the gym and am going until i get to 170 so i guess I’m in shape, but i just turned 20 1 and a half months ago so I can definitly lose 30 pounds in a month if i work my ass off but thats only because I’m young so i better do it now before I’m 50 and I’m old and get to the point where i want to lose 10 pounds which will take months for a 50 year old lol

  13. Carly
    January 3rd, 2016 at 19:41 | #13

    Would 5’0 and 145pounds count as Obiece

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