| Olgiate Olona to Corato | 487.88 mi (785.16 km) |
| Olgiate Olona to Corbetta | 11.62 mi (18.71 km) |
| Olgiate Olona to Corciano | 240.84 mi (387.59 km) |
| Olgiate Olona to Cordenons | 185.39 mi (298.35 km) |
| Olgiate Olona to Cori | 341.29 mi (549.26 km) |
| Olgiate Olona to Coriano | 215.52 mi (346.84 km) |
| Olgiate Olona to Corigliano Calabro | 569.05 mi (915.80 km) |
| Olgiate Olona to Corleone | 585.89 mi (942.90 km) |
| Olgiate Olona to Cormano | 14.86 mi (23.92 km) |
| Olgiate Olona to Cornaredo | 11.72 mi (18.87 km) |
| Olgiate Olona to Cornate d'Adda | 28.21 mi (45.39 km) |
| Olgiate Olona to Cornedo Vicentino | 119.19 mi (191.82 km) |
| Olgiate Olona to Correggio | 110.00 mi (177.03 km) |
| Olgiate Olona to Corridonia | 281.63 mi (453.24 km) |
| Olgiate Olona to Corsico | 17.85 mi (28.72 km) |
