| Olgiate Olona to Cortona | 223.54 mi (359.75 km) |
| Olgiate Olona to Cosenza | 576.08 mi (927.11 km) |
| Olgiate Olona to Cossato | 34.95 mi (56.24 km) |
| Olgiate Olona to Costa Volpino | 60.20 mi (96.89 km) |
| Olgiate Olona to Creazzo | 125.91 mi (202.63 km) |
| Olgiate Olona to Crema | 42.90 mi (69.04 km) |
| Olgiate Olona to Cremona | 65.63 mi (105.63 km) |
| Olgiate Olona to Crevalcore | 127.27 mi (204.82 km) |
| Olgiate Olona to Crispiano | 545.65 mi (878.14 km) |
| Olgiate Olona to Crosia | 579.49 mi (932.59 km) |
| Olgiate Olona to Crotone | 617.02 mi (992.99 km) |
| Olgiate Olona to Cuneo | 108.17 mi (174.08 km) |
| Olgiate Olona to Cuorgne | 62.05 mi (99.86 km) |
| Olgiate Olona to Cusano Milanino | 15.60 mi (25.11 km) |
| Olgiate Olona to Cutro | 615.08 mi (989.88 km) |
