| Grenchen to Cognac | 381.86 mi (614.54 km) |
| Grenchen to Cogolin | 275.34 mi (443.12 km) |
| Grenchen to Colmar | 61.60 mi (99.13 km) |
| Grenchen to Colombes | 265.96 mi (428.02 km) |
| Grenchen to Colomiers | 383.84 mi (617.73 km) |
| Grenchen to Combs-la-Ville | 246.07 mi (396.01 km) |
| Grenchen to Comines | 316.86 mi (509.93 km) |
| Grenchen to Compiegne | 260.31 mi (418.92 km) |
| Grenchen to Concarneau | 529.49 mi (852.13 km) |
| Grenchen to Conde-sur-l'Escaut | 283.94 mi (456.96 km) |
| Grenchen to Conflans-Sainte-Honorine | 274.49 mi (441.75 km) |
| Grenchen to Corbas | 158.66 mi (255.34 km) |
| Grenchen to Corbeil-Essonnes | 247.91 mi (398.97 km) |
| Grenchen to Cormeilles-en-Parisis | 269.52 mi (433.75 km) |
| Grenchen to Cosne sur Loire | 210.03 mi (338.01 km) |
