| Bollate to Novi di Modena | 97.97 mi (157.67 km) |
| Bollate to Novi Ligure | 56.97 mi (91.69 km) |
| Bollate to Nuoro | 361.75 mi (582.18 km) |
| Bollate to Occhiobello | 127.52 mi (205.23 km) |
| Bollate to Oderzo | 163.78 mi (263.58 km) |
| Bollate to Oggiono | 19.67 mi (31.65 km) |
| Bollate to Olbia | 320.71 mi (516.13 km) |
| Bollate to Oleggio | 23.63 mi (38.03 km) |
| Bollate to Olgiate Comasco | 17.67 mi (28.44 km) |
| Bollate to Olgiate Olona | 12.67 mi (20.39 km) |
| Bollate to Omegna | 41.07 mi (66.09 km) |
| Bollate to Opera | 12.50 mi (20.11 km) |
| Bollate to Oppeano | 101.69 mi (163.65 km) |
| Bollate to Orbassano | 85.47 mi (137.55 km) |
| Bollate to Orbetello | 238.82 mi (384.34 km) |
