The Kilometre Zero of the Federal Route 100 starts at Simpang Empat, Teluk Muroh junctions, at its interchange with the Federal Route 18, connecting Lumut to Sitiawan.
The Kilometre Zero of Federal Route 100 begins at Simpang Empat, Teluk Muroh junctions, where it connects to Federal Route 18, linking Lumut with Sitiawan.