| Portet-sur-Garonne to Muggia | 624.52 mi (1,005.07 km) |
| Portet-sur-Garonne to Muggio | 410.99 mi (661.43 km) |
| Portet-sur-Garonne to Mugnano di Napoli | 678.82 mi (1,092.45 km) |
| Portet-sur-Garonne to Musile di Piave | 567.50 mi (913.30 km) |
| Portet-sur-Garonne to Mussomeli | 766.04 mi (1,232.83 km) |
| Portet-sur-Garonne to Naples | 682.58 mi (1,098.50 km) |
| Portet-sur-Garonne to Nardo | 884.66 mi (1,423.72 km) |
| Portet-sur-Garonne to Narni | 565.11 mi (909.45 km) |
| Portet-sur-Garonne to Nembro | 438.21 mi (705.23 km) |
| Portet-sur-Garonne to Nepi | 560.46 mi (901.97 km) |
| Portet-sur-Garonne to Nerviano | 398.43 mi (641.20 km) |
| Portet-sur-Garonne to Nettuno | 590.48 mi (950.28 km) |
| Portet-sur-Garonne to Nichelino | 325.06 mi (523.13 km) |
| Portet-sur-Garonne to Nicosia | 788.10 mi (1,268.33 km) |
| Portet-sur-Garonne to Niscemi | 811.54 mi (1,306.05 km) |
