| Amadora to Noventa Vicentina | 1,153.96 mi (1,857.12 km) |
| Amadora to Novi di Modena | 1,117.03 mi (1,797.68 km) |
| Amadora to Novi Ligure | 1,015.04 mi (1,633.55 km) |
| Amadora to Nuoro | 993.69 mi (1,599.18 km) |
| Amadora to Occhiobello | 1,149.69 mi (1,850.24 km) |
| Amadora to Oderzo | 1,208.04 mi (1,944.16 km) |
| Amadora to Oggiono | 1,064.32 mi (1,712.87 km) |
| Amadora to Olbia | 1,003.45 mi (1,614.90 km) |
| Amadora to Oleggio | 1,027.49 mi (1,653.59 km) |
| Amadora to Olgiate Comasco | 1,047.08 mi (1,685.11 km) |
| Amadora to Olgiate Olona | 1,039.60 mi (1,673.07 km) |
| Amadora to Omegna | 1,024.51 mi (1,648.79 km) |
| Amadora to Opera | 1,048.79 mi (1,687.87 km) |
| Amadora to Oppeano | 1,137.93 mi (1,831.32 km) |
| Amadora to Orbassano | 963.07 mi (1,549.90 km) |
