| Romanshorn to Cadiz | 1,103.18 mi (1,775.40 km) |
| Romanshorn to Calafell | 583.48 mi (939.03 km) |
| Romanshorn to Calahorra | 661.56 mi (1,064.68 km) |
| Romanshorn to Calasparra | 852.10 mi (1,371.32 km) |
| Romanshorn to Calatayud | 690.28 mi (1,110.90 km) |
| Romanshorn to Caldas de Montbuy | 540.82 mi (870.36 km) |
| Romanshorn to Caldas de Reyes | 939.70 mi (1,512.29 km) |
| Romanshorn to Calella | 526.12 mi (846.71 km) |
| Romanshorn to Callosa de Segura | 831.81 mi (1,338.67 km) |
| Romanshorn to Calpe | 773.66 mi (1,245.08 km) |
| Romanshorn to Calvia | 649.79 mi (1,045.74 km) |
| Romanshorn to Camas | 1,049.05 mi (1,688.28 km) |
| Romanshorn to Cambados | 950.28 mi (1,529.34 km) |
| Romanshorn to Cambre | 904.97 mi (1,456.41 km) |
| Romanshorn to Cambrils | 607.46 mi (977.61 km) |
