| Portici to Trim | 1,317.07 mi (2,119.62 km) |
| Portici to Tuam | 1,387.68 mi (2,233.26 km) |
| Portici to Tullamore | 1,331.04 mi (2,142.10 km) |
| Portici to Waterford | 1,282.28 mi (2,063.63 km) |
| Portici to Wexford | 1,260.44 mi (2,028.48 km) |
| Portici to Wicklow | 1,268.97 mi (2,042.21 km) |
| Portici to Abano Terme | 339.06 mi (545.66 km) |
| Portici to Abbiategrasso | 418.15 mi (672.94 km) |
| Portici to Acate | 261.70 mi (421.17 km) |
| Portici to Acerra | 9.10 mi (14.65 km) |
| Portici to Aci Castello | 229.60 mi (369.51 km) |
| Portici to Aci Catena | 226.46 mi (364.46 km) |
| Portici to Aci Sant'Antonio | 226.30 mi (364.19 km) |
| Portici to Acireale | 225.67 mi (363.18 km) |
| Portici to Acquaviva delle Fonti | 131.22 mi (211.18 km) |
