| Ostrow Wielkopolski to Carpentras | 788.99 mi (1,269.75 km) |
| Ostrow Wielkopolski to Carquefou | 914.35 mi (1,471.51 km) |
| Ostrow Wielkopolski to Carqueiranne | 805.07 mi (1,295.64 km) |
| Ostrow Wielkopolski to Carrieres-sous-Poissy | 719.36 mi (1,157.69 km) |
| Ostrow Wielkopolski to Carrieres-sur-Seine | 709.68 mi (1,142.12 km) |
| Ostrow Wielkopolski to Carros | 733.45 mi (1,180.38 km) |
| Ostrow Wielkopolski to Carvin | 648.85 mi (1,044.23 km) |
| Ostrow Wielkopolski to Castanet-Tolosan | 942.14 mi (1,516.23 km) |
| Ostrow Wielkopolski to Castelginest | 936.34 mi (1,506.89 km) |
| Ostrow Wielkopolski to Castelnau-le-Lez | 849.57 mi (1,367.25 km) |
| Ostrow Wielkopolski to Castelnaudary | 934.68 mi (1,504.22 km) |
| Ostrow Wielkopolski to Castelsarrasin | 932.92 mi (1,501.40 km) |
| Ostrow Wielkopolski to Castres | 910.51 mi (1,465.33 km) |
| Ostrow Wielkopolski to Caudebec-les-Elbeuf | 754.77 mi (1,214.69 km) |
| Ostrow Wielkopolski to Caudry | 635.55 mi (1,022.82 km) |
