| Portimao to Busto Arsizio | 1,071.53 mi (1,724.46 km) |
| Portimao to Busto Garolfo | 1,071.03 mi (1,723.66 km) |
| Portimao to Cabras | 941.11 mi (1,514.57 km) |
| Portimao to Cadelbosco di Sopra | 1,125.39 mi (1,811.14 km) |
| Portimao to Cadoneghe | 1,203.11 mi (1,936.22 km) |
| Portimao to Cagli | 1,196.35 mi (1,925.34 km) |
| Portimao to Cagliari | 967.78 mi (1,557.50 km) |
| Portimao to Cairo Montenotte | 1,009.66 mi (1,624.89 km) |
| Portimao to Caivano | 1,249.73 mi (2,011.24 km) |
| Portimao to Calcinaia | 1,101.18 mi (1,772.18 km) |
| Portimao to Calcinato | 1,135.33 mi (1,827.14 km) |
| Portimao to Calderara di Reno | 1,151.26 mi (1,852.78 km) |
| Portimao to Caldogno | 1,187.25 mi (1,910.70 km) |
| Portimao to Calenzano | 1,131.17 mi (1,820.44 km) |
| Portimao to Calolziocorte | 1,102.43 mi (1,774.19 km) |
