| Olten to Cognac | 407.35 mi (655.56 km) |
| Olten to Cogolin | 290.82 mi (468.03 km) |
| Olten to Colmar | 56.54 mi (90.99 km) |
| Olten to Colombes | 282.11 mi (454.02 km) |
| Olten to Colomiers | 409.30 mi (658.70 km) |
| Olten to Combs-la-Ville | 263.07 mi (423.38 km) |
| Olten to Comines | 323.30 mi (520.31 km) |
| Olten to Compiegne | 273.10 mi (439.51 km) |
| Olten to Concarneau | 551.16 mi (887.01 km) |
| Olten to Conde-sur-l'Escaut | 290.02 mi (466.74 km) |
| Olten to Conflans-Sainte-Honorine | 290.49 mi (467.50 km) |
| Olten to Corbas | 183.91 mi (295.97 km) |
| Olten to Corbeil-Essonnes | 265.28 mi (426.93 km) |
| Olten to Cormeilles-en-Parisis | 285.50 mi (459.47 km) |
| Olten to Cosne sur Loire | 232.75 mi (374.58 km) |
