| Port Huron to Capodrise | 4,662.48 mi (7,503.53 km) |
| Port Huron to Capoterra | 4,516.84 mi (7,269.15 km) |
| Port Huron to Capriolo | 4,298.25 mi (6,917.36 km) |
| Port Huron to Capua | 4,656.58 mi (7,494.04 km) |
| Port Huron to Capurso | 4,768.80 mi (7,674.65 km) |
| Port Huron to Carate Brianza | 4,263.25 mi (6,861.03 km) |
| Port Huron to Caravaggio | 4,292.06 mi (6,907.40 km) |
| Port Huron to Carbonera | 4,389.52 mi (7,064.25 km) |
| Port Huron to Carbonia | 4,497.77 mi (7,238.46 km) |
| Port Huron to Cardito | 4,666.75 mi (7,510.40 km) |
| Port Huron to Carignano | 4,235.13 mi (6,815.79 km) |
| Port Huron to Carini | 4,740.91 mi (7,629.76 km) |
| Port Huron to Carlentini | 4,855.73 mi (7,814.54 km) |
| Port Huron to Carmagnola | 4,239.08 mi (6,822.14 km) |
| Port Huron to Carmiano | 4,845.39 mi (7,797.90 km) |
