| Nettuno to Amelia | 75.94 mi (122.22 km) |
| Nettuno to Anagni | 31.74 mi (51.08 km) |
| Nettuno to Ancona | 154.74 mi (249.02 km) |
| Nettuno to Andria | 189.25 mi (304.57 km) |
| Nettuno to Angri | 111.15 mi (178.87 km) |
| Nettuno to Anguillara Sabazia | 47.33 mi (76.16 km) |
| Nettuno to Anzio | 2.40 mi (3.87 km) |
| Nettuno to Anzola dell'Emilia | 225.44 mi (362.80 km) |
| Nettuno to Aosta | 398.01 mi (640.54 km) |
| Nettuno to Apricena | 144.40 mi (232.38 km) |
| Nettuno to Aprilia | 8.10 mi (13.04 km) |
| Nettuno to Aradeo | 300.33 mi (483.34 km) |
| Nettuno to Aragona | 285.40 mi (459.30 km) |
| Nettuno to Arco | 320.09 mi (515.14 km) |
| Nettuno to Arcola | 230.63 mi (371.16 km) |
