| Portimao to Cassina de' Pecchi | 1,090.92 mi (1,755.67 km) |
| Portimao to Cassino | 1,229.41 mi (1,978.55 km) |
| Portimao to Castagneto Carducci | 1,090.03 mi (1,754.24 km) |
| Portimao to Castano Primo | 1,065.92 mi (1,715.43 km) |
| Portimao to Castel Bolognese | 1,170.59 mi (1,883.89 km) |
| Portimao to Castel Gandolfo | 1,171.27 mi (1,884.98 km) |
| Portimao to Castel Goffredo | 1,133.62 mi (1,824.38 km) |
| Portimao to Castel Maggiore | 1,155.90 mi (1,860.25 km) |
| Portimao to Castel Mella | 1,124.80 mi (1,810.19 km) |
| Portimao to Castel San Giorgio | 1,269.70 mi (2,043.39 km) |
| Portimao to Castel San Giovanni | 1,080.26 mi (1,738.52 km) |
| Portimao to Castel San Pietro Terme | 1,162.24 mi (1,870.45 km) |
| Portimao to Castel Volturno | 1,230.42 mi (1,980.17 km) |
| Portimao to Castelbuono | 1,238.52 mi (1,993.20 km) |
| Portimao to Casteldaccia | 1,207.16 mi (1,942.73 km) |
