| Ionia to Carpentras | 4,268.33 mi (6,869.21 km) |
| Ionia to Carquefou | 3,882.28 mi (6,247.93 km) |
| Ionia to Carqueiranne | 4,348.11 mi (6,997.61 km) |
| Ionia to Carrieres-sous-Poissy | 3,968.17 mi (6,386.16 km) |
| Ionia to Carrieres-sur-Seine | 3,979.29 mi (6,404.05 km) |
| Ionia to Carros | 4,367.42 mi (7,028.68 km) |
| Ionia to Carvin | 3,950.93 mi (6,358.41 km) |
| Ionia to Castanet-Tolosan | 4,140.44 mi (6,663.40 km) |
| Ionia to Castelginest | 4,131.10 mi (6,648.36 km) |
| Ionia to Castelnau-le-Lez | 4,236.82 mi (6,818.50 km) |
| Ionia to Castelnaudary | 4,167.07 mi (6,706.24 km) |
| Ionia to Castelsarrasin | 4,104.61 mi (6,605.74 km) |
| Ionia to Castres | 4,169.02 mi (6,709.39 km) |
| Ionia to Caudebec-les-Elbeuf | 3,916.79 mi (6,303.47 km) |
| Ionia to Caudry | 3,980.93 mi (6,406.69 km) |
