| Portici to Marsala | 232.32 mi (373.88 km) |
| Portici to Marsciano | 177.93 mi (286.36 km) |
| Portici to Martano | 212.31 mi (341.68 km) |
| Portici to Martellago | 344.60 mi (554.58 km) |
| Portici to Martina Franca | 156.81 mi (252.36 km) |
| Portici to Martinengo | 400.87 mi (645.13 km) |
| Portici to Martinsicuro | 144.24 mi (232.14 km) |
| Portici to Mascali | 217.01 mi (349.24 km) |
| Portici to Mascalucia | 227.94 mi (366.84 km) |
| Portici to Masera di Padova | 334.83 mi (538.86 km) |
| Portici to Maserada sul Piave | 355.51 mi (572.14 km) |
| Portici to Massa | 308.71 mi (496.82 km) |
| Portici to Massa Lombarda | 281.71 mi (453.37 km) |
| Portici to Massafra | 146.30 mi (235.44 km) |
| Portici to Massalubrense | 14.03 mi (22.59 km) |
