| Port Huron to Casamassima | 4,773.19 mi (7,681.70 km) |
| Port Huron to Casandrino | 4,665.41 mi (7,508.25 km) |
| Port Huron to Casapulla | 4,661.08 mi (7,501.28 km) |
| Port Huron to Casarano | 4,864.94 mi (7,829.36 km) |
| Port Huron to Casatenovo | 4,271.02 mi (6,873.55 km) |
| Port Huron to Casciana Terme | 4,409.30 mi (7,096.08 km) |
| Port Huron to Cascina | 4,400.26 mi (7,081.53 km) |
| Port Huron to Caselle Torinese | 4,223.74 mi (6,797.46 km) |
| Port Huron to Caserta | 4,663.13 mi (7,504.58 km) |
| Port Huron to Casier | 4,391.51 mi (7,067.45 km) |
| Port Huron to Casorate Primo | 4,273.90 mi (6,878.18 km) |
| Port Huron to Casoria | 4,668.88 mi (7,513.84 km) |
| Port Huron to Cassano al Ionio | 4,799.99 mi (7,724.83 km) |
| Port Huron to Cassano d'Adda | 4,285.61 mi (6,897.03 km) |
| Port Huron to Cassano delle Murge | 4,770.06 mi (7,676.67 km) |
