| Cahokia to Collegno | 4,731.05 mi (7,613.88 km) |
| Cahokia to Cologno al Serio | 4,797.00 mi (7,720.03 km) |
| Cahokia to Cologno Monzese | 4,782.33 mi (7,696.42 km) |
| Cahokia to Colorno | 4,849.96 mi (7,805.26 km) |
| Cahokia to Comacchio | 4,930.97 mi (7,935.63 km) |
| Cahokia to Comiso | 5,359.20 mi (8,624.80 km) |
| Cahokia to Como | 4,763.70 mi (7,666.43 km) |
| Cahokia to Concordia Sagittaria | 4,913.44 mi (7,907.41 km) |
| Cahokia to Concorezzo | 4,782.25 mi (7,696.28 km) |
| Cahokia to Conegliano | 4,887.07 mi (7,864.97 km) |
| Cahokia to Conselice | 4,924.57 mi (7,925.32 km) |
| Cahokia to Conselve | 4,896.75 mi (7,880.55 km) |
| Cahokia to Conversano | 5,286.71 mi (8,508.14 km) |
| Cahokia to Copertino | 5,355.31 mi (8,618.54 km) |
| Cahokia to Copparo | 4,908.96 mi (7,900.21 km) |
