| Portage to Cognac | 4,037.51 mi (6,497.75 km) |
| Portage to Cogolin | 4,413.44 mi (7,102.74 km) |
| Portage to Colmar | 4,261.71 mi (6,858.55 km) |
| Portage to Colombes | 4,031.78 mi (6,488.53 km) |
| Portage to Colomiers | 4,181.62 mi (6,729.67 km) |
| Portage to Combs-la-Ville | 4,052.64 mi (6,522.10 km) |
| Portage to Comines | 3,999.00 mi (6,435.77 km) |
| Portage to Compiegne | 4,037.43 mi (6,497.62 km) |
| Portage to Concarneau | 3,816.53 mi (6,142.11 km) |
| Portage to Conde-sur-l'Escaut | 4,031.83 mi (6,488.61 km) |
| Portage to Conflans-Sainte-Honorine | 4,023.14 mi (6,474.61 km) |
| Portage to Corbas | 4,254.30 mi (6,846.64 km) |
| Portage to Corbeil-Essonnes | 4,051.48 mi (6,520.23 km) |
| Portage to Cormeilles-en-Parisis | 4,028.06 mi (6,482.54 km) |
| Portage to Cosne sur Loire | 4,111.13 mi (6,616.23 km) |
