| Olgiate Olona to Cognac | 444.61 mi (715.54 km) |
| Olgiate Olona to Cogolin | 201.31 mi (323.98 km) |
| Olgiate Olona to Colmar | 183.91 mi (295.98 km) |
| Olgiate Olona to Colombes | 384.87 mi (619.38 km) |
| Olgiate Olona to Colomiers | 396.28 mi (637.75 km) |
| Olgiate Olona to Combs-la-Ville | 363.54 mi (585.06 km) |
| Olgiate Olona to Comines | 445.51 mi (716.98 km) |
| Olgiate Olona to Compiegne | 384.77 mi (619.22 km) |
| Olgiate Olona to Concarneau | 624.70 mi (1,005.36 km) |
| Olgiate Olona to Conde-sur-l'Escaut | 412.69 mi (664.16 km) |
| Olgiate Olona to Conflans-Sainte-Honorine | 393.57 mi (633.40 km) |
| Olgiate Olona to Corbas | 192.29 mi (309.46 km) |
| Olgiate Olona to Corbeil-Essonnes | 364.46 mi (586.55 km) |
| Olgiate Olona to Cormeilles-en-Parisis | 388.72 mi (625.58 km) |
| Olgiate Olona to Cosne sur Loire | 308.62 mi (496.68 km) |
