| Isernia to Cognac | 779.92 mi (1,255.17 km) |
| Isernia to Cogolin | 409.21 mi (658.55 km) |
| Isernia to Colmar | 559.98 mi (901.21 km) |
| Isernia to Colombes | 770.20 mi (1,239.51 km) |
| Isernia to Colomiers | 669.96 mi (1,078.20 km) |
| Isernia to Combs-la-Ville | 748.52 mi (1,204.62 km) |
| Isernia to Comines | 828.26 mi (1,332.95 km) |
| Isernia to Compiegne | 771.02 mi (1,240.83 km) |
| Isernia to Concarneau | 987.73 mi (1,589.60 km) |
| Isernia to Conde-sur-l'Escaut | 794.99 mi (1,279.42 km) |
| Isernia to Conflans-Sainte-Honorine | 778.92 mi (1,253.54 km) |
| Isernia to Corbas | 544.39 mi (876.12 km) |
| Isernia to Corbeil-Essonnes | 749.11 mi (1,205.57 km) |
| Isernia to Cormeilles-en-Parisis | 774.12 mi (1,245.82 km) |
| Isernia to Cosne sur Loire | 685.80 mi (1,103.69 km) |
