Finnish national road 45

National Road 45 shield}}
National Road 45
National Road 45 shield}} National Road 45
Valtatie 45 (Finnish); Riksväg 45 (Swedish);
Kantatie 45, Stamväg 45
Route information
	Maintained by the Finnish Transport Agency
Length	51 km (32 mi)
Major junctions
From	Helsinki
To	Hyvinkää
Location
Country	Finland
Major cities	Vantaa
Highway system
	Highways in Finland;

The Finnish national road 45 (Finnish: Kantatie 45, Tuusulanväylä; Swedish: Stamväg 45, Tusbyleden) is the 2nd class main route between the major cities of Helsinki and Hyvinkää in southern Finland. It runs from Käpylä in Helsinki to the Hyrylä in Tuusula as a motorway, where it continues to border of the Hyvinkää town and the national road 3 as a smaller road called Hämeentie.

Route

The road passes through the following localities: