Laguna has a total of 348 kilometres (216 mi) of national roads, all paved.
Daang Maharlika (Route 1, AH26), Calamba - Santa Cruz - Pagsanjan Road(Route 66) and Manila East Road (Route 601, Route 602, Route 603), and San Pablo - Calauan Road (Route 67), form the highway network backbone, and secondary and tertiary national roads interconnect most municipalities, with Magdalena only connected by provincial road.
Provincial roads serves as a supplement to the national roads, and connects barangays and municipalities not connected to the main network.
The highway network is interconnected with nearby provinces and Metro Manila.

The South Luzon Expressway (SLEx) passes through Laguna.
A public-private partnership initiative of the national government include plans to build a circumferential road along Laguna de Bay shoreline, the Laguna de Bay Flood Control Dike Expressway (or C-6 Extension), from San Pedro to Siniloan.
Some of the proposed road networks is the Calamba-Los Baños Expressway and the Cavite–Laguna Expressway that will connect the provinces of Cavite and Laguna.
Laguna has a total of 348 kilometres (216 mi) of national roads, all paved. Daang Maharlika (Route 1, AH26), Calamba - Santa Cruz - Pagsanjan Road(Route 66) and Manila East Road (Route 601, Route 602, Route 603), and San Pablo - Calauan Road (Route 67), form the highway network backbone, and secondary and tertiary national roads interconnect most municipalities, with Magdalena only connected by provincial road. Provincial roads serves as a supplement to the national roads, and connects barangays and municipalities not connected to the main network. The highway network is interconnected with nearby provinces and Metro Manila.
The South Luzon Expressway (SLEx) passes through Laguna. A public-private partnership initiative of the national government include plans to build a circumferential road along Laguna de Bay shoreline, the Laguna de Bay Flood Control Dike Expressway (or C-6 Extension), from San Pedro to Siniloan. Some of the proposed road networks is the Calamba-Los Baños Expressway and the Cavite–Laguna Expressway that will connect the provinces of Cavite and Laguna.
Laguna (province)