| Caerfyrddin to Mechernich | 481.86 mi (775.48 km) |
| Caerfyrddin to Meckenbeuren | 681.12 mi (1,096.15 km) |
| Caerfyrddin to Meckenheim | 496.86 mi (799.62 km) |
| Caerfyrddin to Meerane | 725.72 mi (1,167.93 km) |
| Caerfyrddin to Meerbusch | 473.05 mi (761.30 km) |
| Caerfyrddin to Meine | 629.91 mi (1,013.74 km) |
| Caerfyrddin to Meinerzhagen | 516.05 mi (830.51 km) |
| Caerfyrddin to Meiningen | 643.01 mi (1,034.83 km) |
| Caerfyrddin to Meissen | 764.95 mi (1,231.07 km) |
| Caerfyrddin to Meitingen | 706.76 mi (1,137.42 km) |
| Caerfyrddin to Melle | 537.81 mi (865.51 km) |
| Caerfyrddin to Melsungen | 597.64 mi (961.81 km) |
| Caerfyrddin to Memmelsdorf | 677.25 mi (1,089.93 km) |
| Caerfyrddin to Memmingen | 696.56 mi (1,121.00 km) |
| Caerfyrddin to Mendig | 512.72 mi (825.14 km) |
