What is the difference in size of 20 pounds of muscle vs. 20 of fat?

Question

I'm starting to rethink my weight loss goals because I think what I've wanted is simply not going to get me where I want to be (nothing will, actually). I know 20 pounds of muscle is a lot, but for my own peace of mind, I'm wondering how much my body would change in size if I gained 20 lbs of muscle and lost roughly 50 lbs of fat. I'm 6'3", 240 lbs...the last time I had my body comp tested, I was about 167 lbs lean weight (this was about six years ago, but I doubt I have added muscle since then).

Answer 1

20 pounds is 20 pounds, no matter what form it is.You would lose 30 pounds if you gained 20 pounds of muscle and lost 50 pounds of fat.

Answer 2

20lb of fat would be about 22% bigger in size than 20lb of muscle.

20lb of fat = 22.2ml

20lb of muscle = 18.2ml