Looking healthy and fit, the 26-year-old television personality said he still had more pounds to lose.
"I still have to lose like 40 to 50 pounds believe it or not," Kardashian told Us Weekly at the Saturday unveiling of his Neiman Marcus sock line in Las Vegas. "Six months I should be there."
Kardashian has used social media to document his weight loss hopes and workout regimen, which includes training sessions with brother-in-law Lamar Odom's personal trainer.
He said he had no plans to "cheat" in Vegas.
"I'm not really drinking out here in Vegas -- I've been here since Wednesday and I leave Monday -- that's way too long. But I'm trying to get in a healthy direction," he said.