Finnish national road 1

National Road 1
Ykköstie, Tarvontie, Turunväylä
Route information
Part of E18
Maintained by the Finnish Transport Agency
Length165.2 km (102.7 mi)
Existed1938–present
Major junctions
West end Vt 9 in Turku
East endMunkkiniemi, Helsinki
Location
CountryFinland
Major citiesEspoo, Lohja, Salo
Highway system
Vt 29 Vt 2

The Finnish national road 1 (Finnish: Valtatie 1 or Finnish: Ykköstie; Swedish: Riksväg 1) is the main route between the major cities of Helsinki and Turku in southern Finland. It runs from Munkkiniemi in Helsinki to the VI District of Turku, and is part of the European route E18. The road is a motorway for its whole length.