| Portet-sur-Garonne to Civita Castellana | 562.84 mi (905.81 km) |
| Portet-sur-Garonne to Civitanova Marche | 618.36 mi (995.15 km) |
| Portet-sur-Garonne to Civitavecchia | 535.54 mi (861.87 km) |
| Portet-sur-Garonne to Civitella in Val di Chiana | 516.73 mi (831.60 km) |
| Portet-sur-Garonne to Clusone | 449.90 mi (724.05 km) |
| Portet-sur-Garonne to Coccaglio | 444.81 mi (715.85 km) |
| Portet-sur-Garonne to Codigoro | 538.00 mi (865.83 km) |
| Portet-sur-Garonne to Codogno | 425.20 mi (684.30 km) |
| Portet-sur-Garonne to Codroipo | 591.84 mi (952.48 km) |
| Portet-sur-Garonne to Cogoleto | 364.94 mi (587.31 km) |
| Portet-sur-Garonne to Colle di Val d'Elsa | 487.62 mi (784.75 km) |
| Portet-sur-Garonne to Colle Salvetti | 454.28 mi (731.10 km) |
| Portet-sur-Garonne to Collecchio | 444.82 mi (715.87 km) |
| Portet-sur-Garonne to Colleferro | 602.51 mi (969.64 km) |
| Portet-sur-Garonne to Collegno | 323.21 mi (520.15 km) |
