| Soma to Castelletto sopra Ticino | 1,063.86 mi (1,712.12 km) |
| Soma to Castelli Calepio | 1,004.21 mi (1,616.12 km) |
| Soma to Castelnovo ne' Monti | 955.12 mi (1,537.11 km) |
| Soma to Castelnuovo Berardenga | 882.63 mi (1,420.46 km) |
| Soma to Castelnuovo di Porto | 816.41 mi (1,313.88 km) |
| Soma to Castelnuovo di Verona | 960.08 mi (1,545.09 km) |
| Soma to Castelnuovo Rangone | 932.32 mi (1,500.43 km) |
| Soma to Castelvetrano | 807.64 mi (1,299.77 km) |
| Soma to Castelvetro di Modena | 930.50 mi (1,497.50 km) |
| Soma to Castenaso | 906.29 mi (1,458.53 km) |
| Soma to Castenedolo | 982.32 mi (1,580.89 km) |
| Soma to Castiglion Fiorentino | 862.35 mi (1,387.82 km) |
| Soma to Castiglione del Lago | 852.68 mi (1,372.25 km) |
| Soma to Castiglione delle Stiviere | 971.39 mi (1,563.30 km) |
| Soma to Castrolibero | 610.07 mi (981.82 km) |
