| Seia to Castelletto sopra Ticino | 899.88 mi (1,448.22 km) |
| Seia to Castelli Calepio | 956.68 mi (1,539.62 km) |
| Seia to Castelnovo ne' Monti | 961.61 mi (1,547.56 km) |
| Seia to Castelnuovo Berardenga | 1,006.06 mi (1,619.09 km) |
| Seia to Castelnuovo di Porto | 1,053.16 mi (1,694.90 km) |
| Seia to Castelnuovo di Verona | 993.69 mi (1,599.19 km) |
| Seia to Castelnuovo Rangone | 988.91 mi (1,591.50 km) |
| Seia to Castelvetrano | 1,113.24 mi (1,791.59 km) |
| Seia to Castelvetro di Modena | 989.11 mi (1,591.83 km) |
| Seia to Castenaso | 1,014.51 mi (1,632.70 km) |
| Seia to Castenedolo | 972.24 mi (1,564.67 km) |
| Seia to Castiglion Fiorentino | 1,026.79 mi (1,652.46 km) |
| Seia to Castiglione del Lago | 1,032.23 mi (1,661.21 km) |
| Seia to Castiglione delle Stiviere | 980.58 mi (1,578.09 km) |
| Seia to Castrolibero | 1,265.97 mi (2,037.38 km) |
