| Blackrock to Mombris | 692.65 mi (1,114.72 km) |
| Blackrock to Monchengladbach | 552.03 mi (888.40 km) |
| Blackrock to Monschau | 561.70 mi (903.97 km) |
| Blackrock to Montabaur | 628.12 mi (1,010.86 km) |
| Blackrock to Moosburg | 854.21 mi (1,374.72 km) |
| Blackrock to Morbach | 618.57 mi (995.49 km) |
| Blackrock to Morfelden-Walldorf | 671.16 mi (1,080.13 km) |
| Blackrock to Morlenbach | 689.65 mi (1,109.89 km) |
| Blackrock to Morsbach | 612.33 mi (985.45 km) |
| Blackrock to Mosbach | 713.89 mi (1,148.90 km) |
| Blackrock to Mosigkau | 777.62 mi (1,251.46 km) |
| Blackrock to Mossingen | 743.61 mi (1,196.73 km) |
| Blackrock to Much | 598.22 mi (962.74 km) |
| Blackrock to Mucheln | 769.92 mi (1,239.07 km) |
| Blackrock to Muhlacker | 715.43 mi (1,151.38 km) |
