We are pleased to announce that as of March 4, 2025, an updated Rich Text Editor has been introduced in the MyFitnessPal Community. To learn more about the changes, please click here. We look forward to sharing this new feature with you!

Body fat equation...check this out!

1356

Replies

  • mrb_9110
    mrb_9110 Posts: 189 Member
    bump
  • BiloxiBelle
    BiloxiBelle Posts: 680 Member
    I don't know...this formula puts me at just above 4%. I don't think that is possible. :noway:

    I think you made the mistake I first made. Reread this line: "Lean Body Mass Factor 1 + Factor 2 - Factor 3 - Factor 4 + Factor 5". They're not all plus signs.

    Haha!! You're right...that's what I did! I knew I had to have done SOMETHING wrong to get 4%!!! Thanks!!
  • awb_lrb
    awb_lrb Posts: 23 Member
    bump 4 l8r :smile:
  • PNCTink
    PNCTink Posts: 232 Member
    Thanks for this!! I added all the factors first too, but once I fixed it I was much lower in body fat than I thought I would be! :laugh:
  • paulaercksn
    paulaercksn Posts: 29 Member
    For the math impaired, I found a website that will do this for you.

    http://www.fitwatch.com/qkcalc/body-fat-percentage-calculator.php
  • baisleac
    baisleac Posts: 2,019 Member
    For the math impaired, I found a website that will do this for you.

    http://www.fitwatch.com/qkcalc/body-fat-percentage-calculator.php

    Ack! Fitwatch looks like the proper successor to Nutrawatch which was my favorite cal tracker of all time. I may have to switch. :sad:
  • spcopps
    spcopps Posts: 283
    For the math impaired, I found a website that will do this for you.

    http://www.fitwatch.com/qkcalc/body-fat-percentage-calculator.php

    This website gave the same BF% as the formula listed if anyone is curious!
  • meanness67
    meanness67 Posts: 366 Member
    Bump for later.
  • FrenchMob
    FrenchMob Posts: 1,167 Member
    Or you could use one of the dozens of bodyfat calculators on the internet and use one of them. A whole lot easier

    Bingo!
  • Froggy1976
    Froggy1976 Posts: 472
    Bump
  • chelledepriest
    chelledepriest Posts: 150
    Bump!
  • sjdoman
    sjdoman Posts: 81 Member
    Bump
  • baisleac
    baisleac Posts: 2,019 Member
    Or you could use one of the dozens of bodyfat calculators on the internet and use one of them. A whole lot easier

    Bingo!

    Except most of them do not take build into account.
  • Kolohe71
    Kolohe71 Posts: 613 Member
    Being the nerdy engineer that I am, I converted these to spreadsheet formulas that automate the process and give color coded indications of where you stand.

    Message me, and I'll try to send it to anyone interested.
  • jkleman79
    jkleman79 Posts: 706 Member
    Yea the not taking into account your size is the reason I posted that one...all the other ones are lame in my opinion. Every BODY is different and it needs to take into account different things. Like the one I used to use that says I am Obese with a healthy waist line...ummm ok. So am I healthy or obese?
  • Mommyof3texans
    Mommyof3texans Posts: 347
    Wow, so the body fat scale I just bought recently is like 10% more than this calculation and the calculators online..is the scale that far off? I thought it must be, since I find it hard to believe at 140lbs I'm obese as my scale would indicate.
  • shaunshaikh
    shaunshaikh Posts: 616 Member
    The formula for men can be reduced to just one line:

    -0.082 - 94.42/[Weight] + 4.15*[Waist]/[Weight]

    FWIW, I measure my body fat on a BIA analyzer and it says I'm about 18-19%. This tells me I'm 19.7%. Whatever, still interesting to look at.
  • shaunshaikh
    shaunshaikh Posts: 616 Member
    Ha, using that formula, I decided to see what my waist would be if I went down to 11% body fat while losing only fat and maintaining the same lean mass. It calculated my waist to be just a hair over 30, which is what pants I wore when my body fat was that low. Interesting!
  • NYCDutchess
    NYCDutchess Posts: 622 Member
    Bump...Thx for the info. I'll have to go take some measurements.
  • muffintopteri
    muffintopteri Posts: 83
    Bump
  • WrenLynn
    WrenLynn Posts: 213
    Want to bump this for later. Thanks for the info!
  • JayandBrensMommy
    JayandBrensMommy Posts: 116 Member
    bump. Marking for later!
  • kalebsmama07
    kalebsmama07 Posts: 503
    bump =)
  • chris1132
    chris1132 Posts: 58
    bump
  • Shawna0101
    Shawna0101 Posts: 76 Member
    bump
  • BrandNewMia
    BrandNewMia Posts: 461
    Thx for the info!
  • thetrishwarp
    thetrishwarp Posts: 838 Member
    maybe i did it wrong, but i got 8... there is no way in heck that's correct.
  • thetrishwarp
    thetrishwarp Posts: 838 Member
    oops! problem solved, i'm just a bit dumb today. woops!
  • SiltyPigeon
    SiltyPigeon Posts: 920 Member
    Bumpsies!
  • StabR80
    StabR80 Posts: 320 Member
    bump
This discussion has been closed.

Categories