| Castlebar to Made | 606.97 mi (976.83 km) |
| Castlebar to Margraten | 670.34 mi (1,078.81 km) |
| Castlebar to Marum | 640.22 mi (1,030.33 km) |
| Castlebar to Medemblik | 596.70 mi (960.29 km) |
| Castlebar to Meerssen | 665.82 mi (1,071.53 km) |
| Castlebar to Meppel | 643.28 mi (1,035.25 km) |
| Castlebar to Middelburg | 564.15 mi (907.91 km) |
| Castlebar to Middelharnis | 580.18 mi (933.71 km) |
| Castlebar to Mierlo | 645.93 mi (1,039.52 km) |
| Castlebar to Moerdijk | 599.85 mi (965.36 km) |
| Castlebar to Monnickendam | 600.38 mi (966.21 km) |
| Castlebar to Montfoort | 605.04 mi (973.72 km) |
| Castlebar to Naaldwijk | 576.11 mi (927.16 km) |
| Castlebar to Naarden | 608.77 mi (979.72 km) |
| Castlebar to Nederweert | 655.13 mi (1,054.33 km) |
