| Castel Gandolfo to Casamassima | 227.93 mi (366.82 km) |
| Castel Gandolfo to Casandrino | 100.16 mi (161.19 km) |
| Castel Gandolfo to Casapulla | 96.73 mi (155.66 km) |
| Castel Gandolfo to Casarano | 311.83 mi (501.84 km) |
| Castel Gandolfo to Casatenovo | 319.86 mi (514.76 km) |
| Castel Gandolfo to Casciana Terme | 160.68 mi (258.59 km) |
| Castel Gandolfo to Cascina | 171.12 mi (275.39 km) |
| Castel Gandolfo to Caselle Torinese | 345.12 mi (555.42 km) |
| Castel Gandolfo to Caserta | 99.00 mi (159.32 km) |
| Castel Gandolfo to Casier | 270.25 mi (434.92 km) |
| Castel Gandolfo to Casorate Primo | 306.51 mi (493.28 km) |
| Castel Gandolfo to Casoria | 103.62 mi (166.76 km) |
| Castel Gandolfo to Cassano al Ionio | 234.88 mi (378.01 km) |
| Castel Gandolfo to Cassano d'Adda | 304.93 mi (490.74 km) |
| Castel Gandolfo to Cassano delle Murge | 221.69 mi (356.78 km) |
