| Olgiate Olona to Castrovillari | 546.74 mi (879.89 km) |
| Olgiate Olona to Catania | 646.63 mi (1,040.64 km) |
| Olgiate Olona to Catanzaro | 609.41 mi (980.75 km) |
| Olgiate Olona to Cattolica | 221.07 mi (355.77 km) |
| Olgiate Olona to Cava de' Tirreni | 449.31 mi (723.10 km) |
| Olgiate Olona to Cavallino | 596.62 mi (960.17 km) |
| Olgiate Olona to Cavarzere | 158.94 mi (255.79 km) |
| Olgiate Olona to Cave | 332.22 mi (534.65 km) |
| Olgiate Olona to Cavriago | 103.04 mi (165.83 km) |
| Olgiate Olona to Cavriglia | 194.30 mi (312.70 km) |
| Olgiate Olona to Cazzago San Martino | 55.34 mi (89.06 km) |
| Olgiate Olona to Ceccano | 358.38 mi (576.75 km) |
| Olgiate Olona to Cecina | 179.17 mi (288.34 km) |
| Olgiate Olona to Cefalu | 587.54 mi (945.56 km) |
| Olgiate Olona to Ceglie Messapico | 553.77 mi (891.21 km) |
