"I hope it's plenty," Ferguson said when asked how many goals Owen could score.
"If you look at his goal-scoring record over the years, even the last two years at Newcastle in difficult times, he's scored at one in two.
"He's easily capable of that level, one in two games, so if he players 25 games for me next season, I think he'll get 15 goals."
Despite losing Portuguese Cristiano Ronaldo and Argentine Carlos Tevez from his strike-force in the close season, Ferguson has no shortage of fire-power at his disposal.
Wayne Rooney, Dimitar Berbatov and Federico Macheda all scored in United's 3-2 win over FC Seoul on Friday, and Ferguson said he was still figuring out the best way to use his forward talent.
"We've actually been rotating all the four strikers, because we're bringing new players like Owen into the team and also there's young players like Macheda coming through," he added