At least 21 million voters, or 96.2 per cent chose the retired field marshal, who deposed the elected Islamist president Mohamed Morsi last July, with the ballots counted from 312 of 352 counting stations, state television reported.
His victory had never been in doubt with the main Islamist opposition crushed since Morsi's ouster.
Sisi's only electoral rival, leftist Hamdeen Sabbahi, received 3.8 per cent of the votes counted.
Sisi rode on a wave of support for a potential strongman who can restore stability after several years of tumult.
"It's a victory for stability," said Tahra Khaled, who joined the crowd celebrating in the iconic Tahrir Square, the nerve centre of mass protests that toppled strongman Hosni Mubarak in 2011.
The army-installed government and Sisi were eyeing a large turnout as an endorsement of the overthrow of Islamist president last year, and the subsequent crackdown on his supporters.
Voting had been scheduled to end on Tuesday, but was extended for an extra day in a last minute decision that sparked protests from Sabbahi, a leftist politician who came in third in the 2012 election Morsi won.
The move to extend polling for a day fuelled criticism of an election already marred by a deadly crackdown on Morsi's Muslim Brotherhood movement.
An electoral official had said after Tuesday's voting, when the election had originally been scheduled to end, turnout was around 37 per cent, well below the 52 per cent of voters who cast their ballots in the 2012 election which Morsi won.
Sisi had appealed for a large turnout, seeking vindication for his overthrow of Morsi, Egypt's only freely elected president, after a single turbulent year in power.
After reports of meagre numbers at polling stations on the first day of voting Monday, Sisi's backers in the state-run media appealed to people to get out and vote.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
