| Portchester to Castelletto sopra Ticino | 570.63 mi (918.34 km) |
| Portchester to Castelli Calepio | 620.82 mi (999.11 km) |
| Portchester to Castelnovo ne' Monti | 694.12 mi (1,117.08 km) |
| Portchester to Castelnuovo Berardenga | 785.98 mi (1,264.90 km) |
| Portchester to Castelnuovo di Porto | 881.66 mi (1,418.89 km) |
| Portchester to Castelnuovo di Verona | 662.11 mi (1,065.57 km) |
| Portchester to Castelnuovo Rangone | 707.88 mi (1,139.22 km) |
| Portchester to Castelvetrano | 1,136.38 mi (1,828.83 km) |
| Portchester to Castelvetro di Modena | 710.81 mi (1,143.94 km) |
| Portchester to Castenaso | 729.49 mi (1,173.99 km) |
| Portchester to Castenedolo | 642.79 mi (1,034.48 km) |
| Portchester to Castiglion Fiorentino | 800.82 mi (1,288.79 km) |
| Portchester to Castiglione del Lago | 815.44 mi (1,312.33 km) |
| Portchester to Castiglione delle Stiviere | 653.50 mi (1,051.71 km) |
| Portchester to Castrolibero | 1,155.75 mi (1,860.00 km) |
