| Romanshorn to Castelletto sopra Ticino | 132.13 mi (212.64 km) |
| Romanshorn to Castelli Calepio | 135.84 mi (218.61 km) |
| Romanshorn to Castelnovo ne' Monti | 221.99 mi (357.27 km) |
| Romanshorn to Castelnuovo Berardenga | 309.31 mi (497.79 km) |
| Romanshorn to Castelnuovo di Porto | 405.47 mi (652.54 km) |
| Romanshorn to Castelnuovo di Verona | 161.74 mi (260.29 km) |
| Romanshorn to Castelnuovo Rangone | 221.50 mi (356.47 km) |
| Romanshorn to Castelvetrano | 704.47 mi (1,133.73 km) |
| Romanshorn to Castelvetro di Modena | 225.03 mi (362.16 km) |
| Romanshorn to Castenaso | 234.08 mi (376.71 km) |
| Romanshorn to Castenedolo | 151.37 mi (243.60 km) |
| Romanshorn to Castiglion Fiorentino | 316.85 mi (509.92 km) |
| Romanshorn to Castiglione del Lago | 332.44 mi (535.00 km) |
| Romanshorn to Castiglione delle Stiviere | 159.07 mi (256.00 km) |
| Romanshorn to Castrolibero | 664.63 mi (1,069.61 km) |
