The final results of Sunday’s first round of voting show that Macron’s Republique en Marche party has won about 32.32 percent of the seats.

"France is back," said French Prime Minister Edouard Philippe.

The second round of voting, set for next Sunday, will determine the actual number of seats Macron wins in parliament. The first round mostly eliminates candidates who have won less than 12.5 percent of registered voters.

Macron's party and its ally the MoDem party are set to win between 400 and 445 seats in the 577-member National Assembly in the second round.

The 39-year-old president and former economy minister has called on voters to grant him a strong mandate to fulfill his campaign pledges to overhaul labor rules to make hiring and firing easier, cut corporate tax, and invest billions in areas including job training and renewable energy.

Marine Le Pen’s anti-EU, anti-immigration National Front (FN) is predicted to win between 1 to ten seats in the National Assembly in the June 18 runoff.

The loss is the far-right’s second recent set back in just over a month after Le Pen lost the presidential runoff to Macron.

Meanwhile, German Chancellor Angela Merkel has congratulated Macron over the "great success" of his party after projections showed his win.

"Chancellor Merkel: My sincere congratulations to Emmanuel Macron for the great success of his party in the first round. A vote for reforms," tweeted her spokesman Steffen Seibert.