| Port Huron to Campodarsego | 4,382.41 mi (7,052.81 km) |
| Port Huron to Campogalliano | 4,372.49 mi (7,036.84 km) |
| Port Huron to Campolongo Maggiore | 4,394.35 mi (7,072.03 km) |
| Port Huron to Camponogara | 4,393.01 mi (7,069.86 km) |
| Port Huron to Camposampiero | 4,380.40 mi (7,049.57 km) |
| Port Huron to Canegrate | 4,260.91 mi (6,857.28 km) |
| Port Huron to Canelli | 4,267.53 mi (6,867.93 km) |
| Port Huron to Canicatti | 4,802.50 mi (7,728.87 km) |
| Port Huron to Canosa di Puglia | 4,727.23 mi (7,607.74 km) |
| Port Huron to Cantu | 4,262.53 mi (6,859.88 km) |
| Port Huron to Caorle | 4,416.43 mi (7,107.55 km) |
| Port Huron to Capaci | 4,741.60 mi (7,630.87 km) |
| Port Huron to Capannori | 4,394.27 mi (7,071.89 km) |
| Port Huron to Capena | 4,544.48 mi (7,313.64 km) |
| Port Huron to Capo d'Orlando | 4,805.74 mi (7,734.10 km) |
