| Boppard to Marghita | 698.64 mi (1,124.35 km) |
| Boppard to Marginea | 840.93 mi (1,353.35 km) |
| Boppard to Matca | 966.27 mi (1,555.05 km) |
| Boppard to Medgidia | 1,049.57 mi (1,689.12 km) |
| Boppard to Media | 819.68 mi (1,319.14 km) |
| Boppard to Miercurea-Ciuc | 876.21 mi (1,410.12 km) |
| Boppard to Mioveni | 884.02 mi (1,422.70 km) |
| Boppard to Mizil | 946.13 mi (1,522.66 km) |
| Boppard to Moinesti | 903.78 mi (1,454.49 km) |
| Boppard to Moisei | 787.52 mi (1,267.39 km) |
| Boppard to Moldova Noua | 757.88 mi (1,219.68 km) |
| Boppard to Moreni | 912.95 mi (1,469.25 km) |
| Boppard to Motru | 807.63 mi (1,299.75 km) |
| Boppard to Murfatlar | 1,058.53 mi (1,703.54 km) |
| Boppard to Nasaud | 790.67 mi (1,272.47 km) |
