The full route will take riders from Leeds through Manchester and Sheffield before concluding in London.
It will be the first time the women’s Tour has finished in the UK.
Christian Prudhomme, director of the Tour de France, said: “The UK has always welcomed the Tour with passion and pride, and the route details we are revealing reflect the beauty and diversity of Britain’s terrain.
“Bringing both Grand Departs here is a testament to the strength of our partnership with British Cycling and the enthusiasm of the UK.
“There’s going to be double the impact because we also have the women’s race in Leeds, Sheffield, Manchester and London, as well as the men’s race.
“It will be huge.
“The previous two grand departs in the UK, in London in 1977 and in Yorkshire in 2014, were unforgettable.”
It will be the fifth time the men’s race has visited the UK and the third time it has started here, with previous Grand Departs in London in 2007 and Leeds in 2014.
The 2027 Tour de France Femmes, which will begin in Leeds later in July, will be the third time the event starts outside France, following launches in the Netherlands in 2024 and Switzerland in 2025.
The men’s race will begin in Edinburgh, passing through Carlisle, Keswick, Liverpool, and Welshpool before finishing in Cardiff.
Marion Rousse, director of the Tour de France Femmes, said: “The UK has played an important role in the history of women’s cycling, with champions such as Lizzie Armitstead-Deignan.
“Starting the Tour de France Femmes in Leeds is a strong choice, closely linked to this heritage and to the enthusiasm of a public that knows and loves the Tour.
“These stages clearly reflect the race’s ambition: to continue growing women’s cycling and to inspire future generations.”
Tour organisers expect a huge turnout, with 2.5 million spectators lining the route in Yorkshire during the 2014 Grand Depart.
Mr Prudhomme said the return of the Tour had been in high demand: “Because thanks to London, thanks to Yorkshire, we have more bids than before.”
He added that other countries, including the Czech Republic and Slovenia, have also expressed interest in hosting future starts.
In addition to the racing, organisers revealed a social engagement programme.
Paul Bush, managing director of Grand Depart GB 2027, said: “Bringing the men’s and women’s races together is historic.
“It’s never happened before.
“We’ve called the social impact programme Joy on purpose because the race will actually bring some joy back into life.
“It’s an opportunity for communities to come out and support not only the riders, but take part in local activities.
“Whether it be through old people’s homes, whether it be through street parties, through schools.
“Christian Prudhomme has always said the race brings joy to communities.”
