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  1. #1
    The One's Avatar
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    formula for body fat %

    Hey Everyone, I need someone that knows his body fat to test the accuracy of the formula. It should only be of by a few tenths of a point. I got out of a magazine.

    Thank You



    Hydrostatic weighing for body fat%


    Multiply your weight (in the nude) by 1.082
    Example: if you weigh 200,
    (200) X (1.082) =216.40


    Add 94.42
    Example: 216.40 + 94.42 = 310.82
    *** (Weight factor) ***


    Your waist measurement (at navel) X 4.150
    Example: if your waist is 34”
    (34) X (4.15) = 141.1
    *** (Waist factor)***


    Weight Factor – Waist Factor
    Example 310.82 – 141.1 = 169.72
    (169.72 is your lean body mass)


    Your Actual weight – Lean Body Mass
    Example: 200 – 169.72 = 30.28
    (30.28 is your body fat)

    (Body Fat/ Actual Weight) X (100)

    Example: (30.28/ 200) X (100) = 15.14%


    Your Body Fat would be 15.14%

  2. #2
    SwoleCat is offline AR Hall of Fame
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    The only tests I'd recommend are hydrostatic ones @ major Universities every few MONTHS.

    All the other tape, hand-held gadget crap things, only serve to provide MAJOR head games and give readings that are all over the place.

    My motto is, "If you still have to take bodyfat readings, you're still fat".

    I tell my clients to put down the calipers, and get on the treadmill.


    ~SC~

  3. #3
    1badcamaro's Avatar
    1badcamaro is offline Anabolic Member
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    LOL, nice swole........another way of saying put the fork down

  4. #4
    bluethunder is offline Anabolic Member
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    How does it take in consideration fat stores in all other places not just the waist line?

  5. #5
    Matt76 is offline New Member
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    ha rigght i'm 12% body fat my ass. I'm a chunky PL, I wish I only had 12% bf though that would be nice

  6. #6
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    Yeah this is the worst thing I have EVER done lol it said my bf was 35% when I KNOW its only 18%.. I was just hydrostaticly tested last week so thats how im posotive what my % is.

  7. #7
    Jackman's Avatar
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    Quote Originally Posted by SwoleCat
    The only tests I'd recommend are hydrostatic ones @ major Universities every few MONTHS.

    All the other tape, hand-held gadget crap things, only serve to provide MAJOR head games and give readings that are all over the place.

    My motto is, "If you still have to take bodyfat readings, you're still fat".

    I tell my clients to put down the calipers, and get on the treadmill.


    ~SC~
    well im still fat so ummm lol how would you find out if your school has one i go to UMASS amherst its a big school like 30k students. think they would have one?

  8. #8
    The One's Avatar
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    Thanks guys I knew it was no way in hell I was at 25% body fat

  9. #9
    unclemoney's Avatar
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    it said I was 11% bf but im really 9%......

  10. #10
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    said im 22, but im 12...lol

  11. #11
    big swoll's Avatar
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    i know im not ripped, but i also know that im not 18%bf

  12. #12
    Ultimate is offline Associate Member
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    it says I'm 18% when I know I'm around 11%ish I have that book too it's the NO2 book the 21 day transformation... completely useless...

  13. #13
    The One's Avatar
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    YUP! ultimate, if they have someone use a formula that is so off, Can you imagine how worthless the product(NO2) is?

  14. #14
    lilchef14 is offline Associate Member
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    It said i have 20 when I have 13%, got me worried for a sec

  15. #15
    Ben Lifton's Avatar
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    Quote Originally Posted by Jackman
    well im still fat so ummm lol how would you find out if your school has one i go to UMASS amherst its a big school like 30k students. think they would have one?
    UMass should have one. If your in that area, The Harvard Fatiuge Lab has one. But... Hydrostatic will only be correct if the subject can release all of their residual air volume... underwater. 99% cannot do it... nobody likes being underwater, out of breath. If you can find someone who know how to use calipers (Lange ONLY) ... you can get within 2-3%...

  16. #16
    Sustman is offline Junior Member
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    It said that I was around 11.76% which I think is pretty accurate right now. Maybe I'm a little bit less but I thought this test worked alright!

  17. #17
    hikneeken is offline Junior Member
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    forget all those calculating methods, i like to just follow this rule,8%all abs show when flexed,6%all abs show unflex,4%dry looking with all abs shown unflexed... i personally stay around 7-9

  18. #18
    powerlifter's Avatar
    powerlifter is offline Anabolic Member
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    Quote Originally Posted by SwoleCat
    The only tests I'd recommend are hydrostatic ones @ major Universities every few MONTHS.

    All the other tape, hand-held gadget crap things, only serve to provide MAJOR head games and give readings that are all over the place.

    My motto is, "If you still have to take bodyfat readings, you're still fat".

    I tell my clients to put down the calipers, and get on the treadmill.


    ~SC~

    Good advice SC

  19. #19
    Bryan2's Avatar
    Bryan2 is offline Supplement Guru
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    this thing is way off

  20. #20
    dr.shred's Avatar
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    I said i was 13.2!!!!!!!!! hahaha

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