| Grefrath to Mondolfo | 611.07 mi (983.41 km) |
| Grefrath to Mondovi | 485.23 mi (780.90 km) |
| Grefrath to Monesiglio | 481.68 mi (775.19 km) |
| Grefrath to Monfalcone | 503.96 mi (811.05 km) |
| Grefrath to Monopoli | 886.90 mi (1,427.32 km) |
| Grefrath to Monreale | 976.21 mi (1,571.05 km) |
| Grefrath to Monselice | 489.24 mi (787.36 km) |
| Grefrath to Monserrato | 846.00 mi (1,361.51 km) |
| Grefrath to Monsummano | 556.37 mi (895.39 km) |
| Grefrath to Montagnana | 482.76 mi (776.93 km) |
| Grefrath to Montale | 555.61 mi (894.17 km) |
| Grefrath to Montalto di Castro | 668.36 mi (1,075.62 km) |
| Grefrath to Montalto Uffugo | 950.39 mi (1,529.51 km) |
| Grefrath to Monte Compatri | 724.38 mi (1,165.78 km) |
| Grefrath to Monte di Procida | 815.35 mi (1,312.18 km) |
