I can answer this. WonderMan is listed at class 75. This is from 80s-90's Marvel Universe comics.
but recently according to this bit of info i found on wikipedia...
Powers and abilities
Initially, as empowered by Baron Zemo, Wonder Man possessed superhuman strength and endurance that were comparable with Giant Man. After his first "death", his powers increased significantly while in stasis, increasing his strength to about 95 tons. Since then, through intensive training, Wonder Man's strength has increased yet again, placing him in the "Class 100" strength level, enabling him to lift over 100 tons. Wonder Man also possesses superhuman speed but initially could not fly of his own power. After his revival, he gained a belt that featured a pair of rockets that tapped into his ionic power to give him the ability of flight. Without the belt, he could not fly, but eventually learned to leap great distances like the Hulk. After he was exposed to the energies of a Nega-Bomb in "Operation Galactic Storm", his powers entered a state of flux that lasted until his second "death" in combat with the Kree. At one point during this state of flux, energy erupted from his body and temporarily empowered a group of his non-superpowered friends and associates, who were briefly known as the "Crazy Eight". During an epic battle against Mephisto, he learned that his body made of ionic energy was able to do far more than he first fathomed. Among other things, he learned that he could fly by himself by projecting energy from his lower body. After that, he was killed by the Kree (see bio above and trivia below), and his atoms were dispersed worldwide. His body was later reformed by the Scarlet Witch. His body was now clearly in its natural state, a form of ionic energy.
