How much heavier is muscle than fat?
Since it is denser, muscle weighs more than fat if you compare same-size portions. On average, the density of fat is 0.9 gmL. The density of muscle is 1.1 gmL. Using the averages, 1 liter of muscle weighs 1.06 kg, or 2.3 lbs., while 1 liter of fat weighs .9 kg, or 1.98 lbs.
The density of muscle is approximately 1.1 grams per liter, whereas that of fat is 0.9 grams per liter, meaning that muscle is approximately 20 percent heavier than fat.
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