| Porthcawl to Mombris | 569.41 mi (916.37 km) |
| Porthcawl to Monchengladbach | 437.03 mi (703.32 km) |
| Porthcawl to Monschau | 436.60 mi (702.64 km) |
| Porthcawl to Montabaur | 505.78 mi (813.97 km) |
| Porthcawl to Moosburg | 723.18 mi (1,163.85 km) |
| Porthcawl to Morbach | 486.70 mi (783.27 km) |
| Porthcawl to Morfelden-Walldorf | 545.62 mi (878.09 km) |
| Porthcawl to Morlenbach | 560.20 mi (901.56 km) |
| Porthcawl to Morsbach | 495.44 mi (797.33 km) |
| Porthcawl to Mosbach | 583.12 mi (938.44 km) |
| Porthcawl to Mosigkau | 681.61 mi (1,096.94 km) |
| Porthcawl to Mossingen | 604.32 mi (972.55 km) |
| Porthcawl to Much | 481.26 mi (774.51 km) |
| Porthcawl to Mucheln | 666.73 mi (1,072.99 km) |
| Porthcawl to Muhlacker | 580.04 mi (933.49 km) |
