Circumferential Road 4 (C-4), informally known as the C-4 Road, is a network of roads and bridges that all together form the fourth beltway of Metro Manila in the Philippines. Spanning some 28.1 kilometers (17.5 mi), it connects the cities of Caloocan, Makati, Malabon, Mandaluyong, Navotas, Pasay, Quezon City, and San Juan.