Emmanuel Macron, 39, won the France election between 65.5 percent and 66.1 percent of ballots ahead of Le Pen on between 33.9 percent and 34.5 percent.
A crowd of Macron supporters roared with delight at the news, jubilantly waving red, white and blue tricolour flags at a victory party outside the Louvre Museum in Paris.
Pro-European centrist Emmanuel Macron resoundingly won France's landmark presidential election, first estimates showed Sunday, heading off a fierce challenge from the far-right in a pivotal vote for the future of the divided country and Europe.
Marine Le Pen, his far-right opponent in the presidential runoff, quickly called the 39-year-old Macron to concede defeat after Voters rejected her “French-first” nationalism by a large margin.
The victory caps an extraordinary rise for the 39-year-old former investment banker, who will become the country's youngest-ever leader.
He has promised to heal a fractured and demoralised country after a vicious campaign that has exposed deep economic and social divisions, as well as tensions around identity and immigration.
Macron’s victory marked the third time in six months — following elections in Austria and the Netherlands — that European voters shot down far-right populists who wanted to restore borders across Europe. The election of a French president who championed European unity could strengthen the EU’s hand in its complex divorce proceedings with Britain, which voted last year to leave the bloc.
In a statement minutes after the last polls closed Sunday night, Prime Minister Bernard Cazeneuve announced Macron’s victory.
“(This) testifies to the lucidity of the voters, who rejected the deadly project of the extreme right,” he said, adding that the presidential vote showed an embrace of the EU.
Many French voters backed Macron reluctantly, not because they agreed with his politics but simply to keep out Le Pen and her far-right National Front party, which is still tainted by its long anti-Semitic and racist history.
After the most closely watched and unpredictable French presidential campaign in recent memory, many voters rejected the runoff choice altogether. Pollsters projected that French voters cast blank or spoiled ballots in record numbers Sunday.
Macron now becomes not only France’s youngest-ever president but also one of its most unlikely. Until now, modern France had been governed either by the Socialists or the conservatives — but both Macron and Le Pen upended those political traditions.