The sentencing of the 31-year-old San Francisco man was handed down by US District Court Judge Katherine Forrest in a Manhattan courtroom, according to the US Attorney's Office for the Southern District of New York. Ulbricht was facing a minimum sentence of 20 years in prison.
In a letter filed to the court earlier this week, Ulbricht pleaded with the judge not to send him away for life.
"As I see it, a life sentence is more similar in nature to a death sentence than it is to a sentence...Both condemn you to die in prison, a life sentence just takes longer," Ulbricht wrote. "I've had my youth, and I know you must take away my middle years, but please leave me my old age.
"Please leave a small light at the end of the tunnel, an excuse to stay healthy, an excuse to dream of better days ahead and a chance to redeem myself in the free world before I meet my maker."
In the end, Forrest rejected Ulbricht's plea.