Total Project Costs: For commercial installations, expect costs ranging from $5,000 to $20,000 per mile for underground projects and from $40,000 to $60,000 per mile for aerial installations. 50 per foot for the cable itself, while multimode fiber ranges from $0. Higher strand counts increase costs proportionally—a 12-strand fiber. The price of fiber optic cabling depends on cable type, length, installation method, and surrounding materials. Mid-Range – 600 ft mixed indoor/outdoor, single mode, some conduit, standard terminations: Cable $0. These fibers are thin strands, often as small as a human hair, that transmit data as pulses of light. Whether you're linking buildings, running broadband in rural areas, or building 5G infrastructure, the right cable matters.