| Romanshorn to Castelfidardo | 348.26 mi (560.48 km) |
| Romanshorn to Castelfiorentino | 284.69 mi (458.16 km) |
| Romanshorn to Castelfranco di Sopra | 292.26 mi (470.35 km) |
| Romanshorn to Castelfranco di Sotto | 275.29 mi (443.04 km) |
| Romanshorn to Castelfranco Emilia | 220.51 mi (354.87 km) |
| Romanshorn to Castelfranco Veneto | 179.24 mi (288.45 km) |
| Romanshorn to Castellabate | 574.87 mi (925.16 km) |
| Romanshorn to Castellammare del Golfo | 682.55 mi (1,098.45 km) |
| Romanshorn to Castellammare di Stabia | 538.04 mi (865.90 km) |
| Romanshorn to Castellamonte | 169.82 mi (273.29 km) |
| Romanshorn to Castellana Grotte | 601.52 mi (968.05 km) |
| Romanshorn to Castellaneta | 608.17 mi (978.75 km) |
| Romanshorn to Castellanza | 136.24 mi (219.26 km) |
| Romanshorn to Castellarano | 218.06 mi (350.93 km) |
| Romanshorn to Castelleone | 157.86 mi (254.05 km) |
