| Cazzago San Martino to Oerlinghausen | 445.46 mi (716.90 km) |
| Cazzago San Martino to Oestrich-Winkel | 319.40 mi (514.02 km) |
| Cazzago San Martino to Offenburg | 222.35 mi (357.83 km) |
| Cazzago San Martino to Oftersheim | 270.29 mi (434.98 km) |
| Cazzago San Martino to Ohrdruf | 363.95 mi (585.71 km) |
| Cazzago San Martino to Ohringen | 251.21 mi (404.28 km) |
| Cazzago San Martino to Olbernhau | 382.93 mi (616.26 km) |
| Cazzago San Martino to Olching | 190.89 mi (307.21 km) |
| Cazzago San Martino to Oldenburg | 528.77 mi (850.98 km) |
| Cazzago San Martino to Oldenburg in Holstein | 603.57 mi (971.35 km) |
| Cazzago San Martino to Olfen | 440.64 mi (709.14 km) |
| Cazzago San Martino to Olpe | 388.76 mi (625.65 km) |
| Cazzago San Martino to Olsberg | 404.74 mi (651.37 km) |
| Cazzago San Martino to Oranienburg | 516.24 mi (830.81 km) |
| Cazzago San Martino to Ortenberg | 332.89 mi (535.74 km) |
