| Castel Gandolfo to Cosenza | 253.52 mi (408.00 km) |
| Castel Gandolfo to Cossato | 346.18 mi (557.13 km) |
| Castel Gandolfo to Costa Volpino | 309.51 mi (498.11 km) |
| Castel Gandolfo to Creazzo | 268.05 mi (431.39 km) |
| Castel Gandolfo to Crema | 290.89 mi (468.14 km) |
| Castel Gandolfo to Cremona | 268.30 mi (431.78 km) |
| Castel Gandolfo to Crevalcore | 218.67 mi (351.91 km) |
| Castel Gandolfo to Crispiano | 251.06 mi (404.05 km) |
| Castel Gandolfo to Crosia | 263.03 mi (423.30 km) |
| Castel Gandolfo to Crotone | 298.31 mi (480.09 km) |
| Castel Gandolfo to Cuneo | 315.34 mi (507.50 km) |
| Castel Gandolfo to Cuorgne | 354.91 mi (571.17 km) |
| Castel Gandolfo to Cusano Milanino | 314.76 mi (506.56 km) |
| Castel Gandolfo to Cutro | 295.06 mi (474.86 km) |
| Castel Gandolfo to Cutrofiano | 310.66 mi (499.97 km) |
