| Grefrath to Minturno | 779.53 mi (1,254.53 km) |
| Grefrath to Mira | 486.22 mi (782.50 km) |
| Grefrath to Mirandola | 495.79 mi (797.90 km) |
| Grefrath to Mirano | 481.70 mi (775.22 km) |
| Grefrath to Misano Adriatico | 588.45 mi (947.02 km) |
| Grefrath to Misilmeri | 982.12 mi (1,580.57 km) |
| Grefrath to Missaglia | 412.72 mi (664.21 km) |
| Grefrath to Misterbianco | 1,044.38 mi (1,680.77 km) |
| Grefrath to Modena | 508.32 mi (818.06 km) |
| Grefrath to Modica | 1,081.80 mi (1,740.98 km) |
| Grefrath to Modugno | 864.84 mi (1,391.82 km) |
| Grefrath to Mogliano Veneto | 481.50 mi (774.91 km) |
| Grefrath to Molfetta | 852.98 mi (1,372.75 km) |
| Grefrath to Molinella | 525.25 mi (845.31 km) |
| Grefrath to Moncalieri | 442.10 mi (711.49 km) |
