1. Sarah Uytterlinde


    For the calculation for women: are the measurements of neck, waist etc to be entered in the metrical or imperical system?
    So inches or centimeters :)! Thanks!

  2. Andy,
    I have been dieting and lifting for over ten years, but this was the first time I’d seen the Navy approach mentioned. (I can’t tell you how many times I’ve read words similar to “All body fat measurement approaches suck. Just use the same one so your results will suck consistently.”) The results were in the ballpark I’d expected (19%), although your explanation that measuring the neck and abdomen makes the most sense because that’s where most people store fat was a lightbulb moment. I can’t thank you enough for providing such an excellent resource.

    1. Most welcome, Bill.

      You’ve probably picked up on this from the article, but in case not, “Just use the same one so your results will suck consistently.” is incorrect also.

  3. Hello Andy,

    I was reading through this article and saw that you mention bloating as throwing off measurements.

    What would you recommend for someone who wakes up bloated most mornings and takes measurements?

  4. I am 18.1% body fat without having committed to any gym program for a few years. What would be considered a healthy fat percentage without considering aesthetics of ripped lean muscle?

    1. I’m not sure it’s possible to put a figure on this, but the leaner you are the better the blood markers for disease risk tend to be with diminishing returns. I doubt there would be much difference for people in the 11-14% body fat range.

  5. Andy, all of your articles are extremely well written and full of great information. Definitely the most precise and enjoyable online coaching I’ve came across thus far. Thank you for your dedication!

    1. Thanks for writing, A Rog. 🙂

      PS: Sorry for the delay in replying. I had been unable to do so while the website went through a big update over August.

  6. I can vouch for this calc. I had a DEXA scan and this calc was within 0.3% !
    So, if you are a man with a typical fat distribution in the torso it is as accurate as DEXA and free !

  7. Hi Andy,

    For an optimal nutrition partitioning in realizing muscle mass, what bodyfat % do you recommend? Max 15%? for men?

    Is this also a issue for women? If so, whats the maximum bodyfat %?

    For men 10% bodyfast is pretty ripped, what is the equivalent for women?

    Thanks in advance Andy.

    1. Hi Teun, thanks for the questions. In order:
      – The leaner the better, down to around 9-10%. Beyond that there is probably little benefit.
      – Yes. / There is no maximum, it’s in degrees.
      – Add 8%.

    1. Hi Seif, that’s the standard error of estimate (SEE), which basically means how accurate it is for most people. You can expect your estimate to be within 3% of your actual body fat percentage. Thank you for asking, I’ll rewrite them as ~3% to ~3%(+/-) which will be clearer.

  8. Andy Hi,
    I’m a little bit confused. Why the narrower the neck the higher the BF ? Shouldn’t be the opposite since a more narrow neck means a thinner neck and a thinner overall body ? Thanks.

  9. Check out this method for estimating body fat: https://strongur.io/calculator.html

    All it uses is height, weight, max bench & max squat. I’ve been helping beta test his new app (it’s pretty awesome), and the body fat calculator is amazing accurate. It uses your max lifts to estimate your lean mass, and then backs into your body fat the other way.

    The calculations I get from it are right in the ballpark of the Navy method, only without the measuring.

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