| Opole to Cognac | 905.75 mi (1,457.67 km) |
| Opole to Cogolin | 741.14 mi (1,192.75 km) |
| Opole to Colmar | 507.72 mi (817.10 km) |
| Opole to Colombes | 708.29 mi (1,139.89 km) |
| Opole to Colomiers | 916.59 mi (1,475.10 km) |
| Opole to Combs-la-Ville | 699.81 mi (1,126.24 km) |
| Opole to Comines | 651.91 mi (1,049.14 km) |
| Opole to Compiegne | 674.86 mi (1,086.08 km) |
| Opole to Concarneau | 999.98 mi (1,609.31 km) |
| Opole to Conde-sur-l'Escaut | 628.77 mi (1,011.90 km) |
| Opole to Conflans-Sainte-Honorine | 713.63 mi (1,148.47 km) |
| Opole to Corbas | 691.34 mi (1,112.60 km) |
| Opole to Corbeil-Essonnes | 704.37 mi (1,133.57 km) |
| Opole to Cormeilles-en-Parisis | 709.58 mi (1,141.96 km) |
| Opole to Cosne sur Loire | 714.57 mi (1,149.99 km) |
