Conrad Murray is hopeful that he will be out of jail by the end of August after serving just two years of a four-year jail sentence for the involuntary manslaughter of Michael Jackson, has exclusively learned.

The killer doc is “boasting to his girlfriend, Nicole Alvarez, that he will be out of jail by the end of summer. He is counting down the days until he is released,” a source close to the situation revealed.

Murray — convicted in November 2011 over the death of the “Thriller” singer, 50 — is currently behind bars at Men’s Central Jail in Los Angeles.

“Murray has complained that he should have been let out sooner and says the only reason it hasn’t happened is because Sheriff Lee Baca is running for re-election and doesn’t want to deal with negative publicity if he was released and placed on house arrest,” the source said.