| Portet-sur-Garonne to Catania | 829.03 mi (1,334.19 km) |
| Portet-sur-Garonne to Catanzaro | 850.28 mi (1,368.39 km) |
| Portet-sur-Garonne to Cattolica | 565.79 mi (910.55 km) |
| Portet-sur-Garonne to Cava de' Tirreni | 707.86 mi (1,139.18 km) |
| Portet-sur-Garonne to Cavallino | 889.63 mi (1,431.72 km) |
| Portet-sur-Garonne to Cavarzere | 538.88 mi (867.24 km) |
| Portet-sur-Garonne to Cave | 596.83 mi (960.50 km) |
| Portet-sur-Garonne to Cavriago | 459.79 mi (739.96 km) |
| Portet-sur-Garonne to Cavriglia | 504.58 mi (812.05 km) |
| Portet-sur-Garonne to Cazzago San Martino | 447.36 mi (719.96 km) |
| Portet-sur-Garonne to Ceccano | 621.41 mi (1,000.06 km) |
| Portet-sur-Garonne to Cecina | 457.21 mi (735.81 km) |
| Portet-sur-Garonne to Cefalu | 759.81 mi (1,222.80 km) |
| Portet-sur-Garonne to Ceglie Messapico | 847.29 mi (1,363.58 km) |
| Portet-sur-Garonne to Celano | 623.33 mi (1,003.16 km) |
