| Pioltello to Navodari | 944.64 mi (1,520.25 km) |
| Pioltello to Negresti-Oas | 686.59 mi (1,104.97 km) |
| Pioltello to Nehoiu | 821.51 mi (1,322.09 km) |
| Pioltello to Ocna Mures | 699.63 mi (1,125.95 km) |
| Pioltello to Odobesti | 855.20 mi (1,376.31 km) |
| Pioltello to Odorheiu Secuiesc | 768.46 mi (1,236.71 km) |
| Pioltello to Oltenita | 852.34 mi (1,371.72 km) |
| Pioltello to Onesti | 838.62 mi (1,349.63 km) |
| Pioltello to Oradea | 610.07 mi (981.81 km) |
| Pioltello to Orastie | 669.04 mi (1,076.72 km) |
| Pioltello to Oravita | 600.87 mi (967.00 km) |
| Pioltello to Orsova | 638.48 mi (1,027.53 km) |
| Pioltello to Otelu Rosu | 629.72 mi (1,013.43 km) |
| Pioltello to Otopeni | 818.48 mi (1,317.21 km) |
| Pioltello to Ovidiu | 942.79 mi (1,517.27 km) |
