| Ronciglione to Calafell | 553.55 mi (890.85 km) |
| Ronciglione to Calahorra | 723.94 mi (1,165.07 km) |
| Ronciglione to Calasparra | 784.28 mi (1,262.18 km) |
| Ronciglione to Calatayud | 715.21 mi (1,151.01 km) |
| Ronciglione to Caldas de Montbuy | 517.89 mi (833.46 km) |
| Ronciglione to Caldas de Reyes | 1,060.71 mi (1,707.05 km) |
| Ronciglione to Calella | 492.68 mi (792.89 km) |
| Ronciglione to Callosa de Segura | 747.53 mi (1,203.03 km) |
| Ronciglione to Calpe | 686.72 mi (1,105.16 km) |
| Ronciglione to Calvia | 540.26 mi (869.47 km) |
| Ronciglione to Camas | 1,022.77 mi (1,645.99 km) |
| Ronciglione to Cambados | 1,069.66 mi (1,721.44 km) |
| Ronciglione to Cambre | 1,041.54 mi (1,676.20 km) |
| Ronciglione to Cambrils | 581.55 mi (935.92 km) |
| Ronciglione to Campo de Criptana | 824.57 mi (1,327.02 km) |
