Al-Sisi achieved a landslide victory over leftist candidate Hamdeen Sabahy in the three-day presidential polls held last month.
"Presidential candidate Abdel-Fattah Saeed Hussein Khalil al-Sisi got 23,780,104 votes, which represents 96.91 percent of the votes," Xinhua quoted Judge Anwar al-Assi, chairman of the election commission, as saying in a press conference Tuesday.
Al-Assi said Sabahy got 757,511 of the total valid votes, about 3.1 percent.
More than 25 million of the 53.9 million eligible voters joined the polls, giving a voter turnout of 47.45 percent.
"The valid votes were 24,537,615, representing 95.93 percent of the votes, while the invalid votes were 1,040,608, representing 4.07 percent of the votes," he said.
"Accordingly, the winner of the post of president of the Arab Republic of Egypt is Abdel-Fattah al-Sisi," al-Assi announced.
Sisi supporters took to the streets across the country to celebrate his victory after the announcement.