| Portet-sur-Garonne to Cognac | 172.75 mi (278.02 km) |
| Portet-sur-Garonne to Cogolin | 257.91 mi (415.07 km) |
| Portet-sur-Garonne to Colmar | 425.63 mi (684.99 km) |
| Portet-sur-Garonne to Colombes | 375.40 mi (604.15 km) |
| Portet-sur-Garonne to Colomiers | 7.24 mi (11.66 km) |
| Portet-sur-Garonne to Combs-la-Ville | 359.96 mi (579.30 km) |
| Portet-sur-Garonne to Comines | 505.78 mi (813.97 km) |
| Portet-sur-Garonne to Compiegne | 412.69 mi (664.16 km) |
| Portet-sur-Garonne to Concarneau | 395.41 mi (636.36 km) |
| Portet-sur-Garonne to Conde-sur-l'Escaut | 489.52 mi (787.81 km) |
| Portet-sur-Garonne to Conflans-Sainte-Honorine | 379.88 mi (611.36 km) |
| Portet-sur-Garonne to Corbas | 227.05 mi (365.41 km) |
| Portet-sur-Garonne to Corbeil-Essonnes | 355.57 mi (572.24 km) |
| Portet-sur-Garonne to Cormeilles-en-Parisis | 378.60 mi (609.30 km) |
| Portet-sur-Garonne to Cosne sur Loire | 278.55 mi (448.28 km) |
