Finnish national road 3 (Finnish: Valtatie 3 or Kolmostie; Swedish: Riksväg 3) is a highway in Finland between Helsinki and Vaasa via Hämeenlinna and Tampere. The road is 424 kilometres (263 mi) long and it is part of the European route E12. 180 kilometres (110 mi) of the highway is motorway, connecting Helsinki to Tampere. North of Tampere, the road is mostly two-lane road, with a share of 2+1 road. The busiest point on Highway 3 is in Helsinki, north of the Ring I junction, where the average traffic volume is about 90,000 vehicles per day.
Back in the late 1950s before the current freeway, the Finnish regional road 132 (Mt 132) was the former main road to Hämeenlinna and Tampere via Loppi and Janakkala.