One can say that muscle is 3 times as dense as fat. [citation required]

What is the term for the opposite? Fat is 3 times less dense than muscle? That doesn't sound quite right. Is there a better way to say that?

  • 1
    relevant: nytimes.com/2007/10/28/opinion/…
    – herisson
    Feb 12, 2016 at 16:56
  • "3 times more dense" could be interpreted as "4 times as dense", although I suspect this is not the intended meaning.
    – AndyT
    Feb 12, 2016 at 16:58
  • @AndyT You're right. I reverted the question to my original wording.
    – Stephen S
    Feb 13, 2016 at 3:48

1 Answer 1


I agree that 'three times less' sounds a bit confusing.

You could say:

Fat is a third as dense as muscle.

Fat has one third the density of muscle.

  • Of course! Multiply by a fraction. I don't know why that didn't occur to me.
    – Stephen S
    Feb 12, 2016 at 5:22

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