| Grefrath to Muggia | 521.78 mi (839.73 km) |
| Grefrath to Muggio | 417.82 mi (672.41 km) |
| Grefrath to Mugnano di Napoli | 811.94 mi (1,306.69 km) |
| Grefrath to Musile di Piave | 486.84 mi (783.50 km) |
| Grefrath to Mussomeli | 1,017.09 mi (1,636.85 km) |
| Grefrath to Naples | 817.59 mi (1,315.79 km) |
| Grefrath to Nardo | 952.44 mi (1,532.81 km) |
| Grefrath to Narni | 674.89 mi (1,086.13 km) |
| Grefrath to Nembro | 416.73 mi (670.66 km) |
| Grefrath to Nepi | 688.93 mi (1,108.72 km) |
| Grefrath to Nerviano | 417.66 mi (672.17 km) |
| Grefrath to Nettuno | 744.88 mi (1,198.77 km) |
| Grefrath to Nichelino | 442.20 mi (711.65 km) |
| Grefrath to Nicosia | 1,017.69 mi (1,637.81 km) |
| Grefrath to Niscemi | 1,056.39 mi (1,700.10 km) |
