Amanda Knox spent just under four years in an Italian prison — a total of 1,427 days, from her arrest in 2007 until her release in 2011.

Quick Scoop: How long did Amanda Knox spend in jail?

To answer “how long did Amanda Knox spend in jail,” we’re talking specifically about her time incarcerated in Italy after the murder of her roommate, Meredith Kercher, in Perugia.

  • She was arrested in late 2007 in Italy in connection with the Kercher case.
  • She remained in prison through her 2009 conviction, when she was sentenced to 26 years.
  • She was released in 2011, when an appeals court overturned that conviction.
  • In total, she spent 1,427 days behind bars — often described as “almost four years” or “nearly four years.”

Put simply: when people ask “how long did Amanda Knox spend in jail?” , the widely cited answer is almost four years in an Italian prison (about 1,427 days) before her release on appeal and later full acquittal by Italy’s highest court in 2015.

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