| Olgiate Olona to Casamassima | 517.18 mi (832.31 km) |
| Olgiate Olona to Casandrino | 422.07 mi (679.26 km) |
| Olgiate Olona to Casapulla | 415.93 mi (669.37 km) |
| Olgiate Olona to Casarano | 609.14 mi (980.32 km) |
| Olgiate Olona to Casatenovo | 21.17 mi (34.07 km) |
| Olgiate Olona to Casciana Terme | 168.68 mi (271.46 km) |
| Olgiate Olona to Cascina | 157.67 mi (253.74 km) |
| Olgiate Olona to Caselle Torinese | 67.76 mi (109.05 km) |
| Olgiate Olona to Caserta | 417.57 mi (672.01 km) |
| Olgiate Olona to Casier | 165.04 mi (265.60 km) |
| Olgiate Olona to Casorate Primo | 22.81 mi (36.71 km) |
| Olgiate Olona to Casoria | 425.49 mi (684.76 km) |
| Olgiate Olona to Cassano al Ionio | 552.52 mi (889.19 km) |
| Olgiate Olona to Cassano d'Adda | 31.40 mi (50.53 km) |
| Olgiate Olona to Cassano delle Murge | 514.41 mi (827.87 km) |
