| Boppard to Montilla | 1,061.89 mi (1,708.94 km) |
| Boppard to Montmelo | 651.78 mi (1,048.93 km) |
| Boppard to Montornes del Valles | 652.12 mi (1,049.49 km) |
| Boppard to Montoro | 1,029.18 mi (1,656.31 km) |
| Boppard to Monzon | 674.83 mi (1,086.03 km) |
| Boppard to Mora | 914.33 mi (1,471.47 km) |
| Boppard to Moralzarzal | 863.94 mi (1,390.37 km) |
| Boppard to Moron de la Frontera | 1,112.37 mi (1,790.18 km) |
| Boppard to Mostoles | 879.95 mi (1,416.14 km) |
| Boppard to Motril | 1,082.53 mi (1,742.17 km) |
| Boppard to Muchamiel | 906.77 mi (1,459.31 km) |
| Boppard to Mula | 953.40 mi (1,534.35 km) |
| Boppard to Munguia | 684.03 mi (1,100.84 km) |
| Boppard to Murcia | 948.75 mi (1,526.86 km) |
| Boppard to Muro del Alcoy | 883.37 mi (1,421.64 km) |
