Does muscle weight more than fat?

A pound of fat weighs the same as a pound of muscle. There is no difference. However, they do differ in density. Muscle tissue tends to be more dense than fat tissue because it has more water. This means that a muscular person would generally displace less water (have less volume) than a fat person of the same weight, and that a muscular person would weigh more than a fat person who displaces the same amount of water (equal volume).