| Niederkassel to Mendicino | 913.45 mi (1,470.06 km) |
| Niederkassel to Menfi | 958.02 mi (1,541.79 km) |
| Niederkassel to Mentana | 663.80 mi (1,068.28 km) |
| Niederkassel to Merano | 342.58 mi (551.33 km) |
| Niederkassel to Merate | 370.31 mi (595.96 km) |
| Niederkassel to Mercato San Severino | 785.98 mi (1,264.91 km) |
| Niederkassel to Mercogliano | 776.73 mi (1,250.02 km) |
| Niederkassel to Mesagne | 876.46 mi (1,410.52 km) |
| Niederkassel to Messina | 966.45 mi (1,555.36 km) |
| Niederkassel to Mestre | 439.05 mi (706.58 km) |
| Niederkassel to Mestrino | 430.07 mi (692.12 km) |
| Niederkassel to Milan | 382.73 mi (615.95 km) |
| Niederkassel to Milazzo | 958.39 mi (1,542.37 km) |
| Niederkassel to Minerbio | 475.21 mi (764.78 km) |
| Niederkassel to Minervino Murge | 798.48 mi (1,285.03 km) |
