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  1. #1
    Senior Member
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    Body Fat Formulas

    Has anybody used a formula to determine body fat? A newsletter that I subscribe to had an article about body fat and listed 2 formula's that could be used to determine body fat. They are:

    MALE BODY FAT CALCULATOR
    100*(-98.42 + 4.15waist - 0.082weight)/weight) = % Body Fat

    FEMALE BODY FAT CALCULATOR
    100*(-76.76 + 4.15waist - 0.082weight)/weight = %Body Fat

    Can somebody who has had their body fat measured use one of the above formulas? I am interested in seeing how accurate they are.

    Thanks

  2. #2
    Senior Member
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    uh, it's been a while since I did math and all, but that gave me a negative number.

  3. #3
    Killing Rabbits
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    You need units!

  4. #4
    Senior Member DannoXYZ's Avatar
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    I ended up with a negative weight... I think I went overboard with my weight-loss training...

  5. #5
    lillypad
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    You actually should come up with a positive number (remember your order of operations from algebra and divide everything that you get on top by your weight which is the only number on the bottom) I came up with 11.3% which is actually within 1% of the value that I got the last time that I had a skin-fold caliper test done.
    However, I don't know if this would work for everyone because people have fat stored in places other than around their waist. Some people are "apples" and some people are "pears".
    Last edited by lillypad; 01-08-06 at 04:32 PM.

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