Conrad, who also flew two Gemini missions in the 1960s and commanded first Skylab mission in 1973, crashed on a turn Thursday on Highway 150 near Ojai and died five hours later at Ojai Valley Community Hospital.
Conrad, who lived in Huntington Beach near Los Angeles, was on a trip to Monterey with his wife, Nancy, and friends, Ventura County Deputy Coroner James Baroni said.
Conrad, who divorced his first wife, is survived by his second wife, three sons and seven grandchildren.