| Portici to Montigny-les-Metz | 697.37 mi (1,122.31 km) |
| Portici to Montivilliers | 913.06 mi (1,469.42 km) |
| Portici to Montlouis-sur-Loire | 807.86 mi (1,300.12 km) |
| Portici to Montlucon | 699.36 mi (1,125.51 km) |
| Portici to Montmagny | 811.88 mi (1,306.59 km) |
| Portici to Montmorency | 813.43 mi (1,309.08 km) |
| Portici to Montpellier | 568.66 mi (915.17 km) |
| Portici to Montreuil | 803.51 mi (1,293.13 km) |
| Portici to Montrouge | 805.90 mi (1,296.97 km) |
| Portici to Morangis | 800.67 mi (1,288.55 km) |
| Portici to Morieres-les-Avignon | 527.30 mi (848.61 km) |
| Portici to Morlaix | 1,037.04 mi (1,668.95 km) |
| Portici to Morsang-sur-Orge | 798.35 mi (1,284.82 km) |
| Portici to Mouans-Sartoux | 423.59 mi (681.71 km) |
| Portici to Mougins | 421.98 mi (679.11 km) |
