| Castle Rock to Menen | 4,841.60 mi (7,791.80 km) |
| Castle Rock to Merchtem | 4,871.90 mi (7,840.57 km) |
| Castle Rock to Merelbeke | 4,854.13 mi (7,811.96 km) |
| Castle Rock to Merksem | 4,866.83 mi (7,832.41 km) |
| Castle Rock to Merksplas | 4,875.60 mi (7,846.52 km) |
| Castle Rock to Mettet | 4,914.65 mi (7,909.37 km) |
| Castle Rock to Meulebeke | 4,840.59 mi (7,790.18 km) |
| Castle Rock to Middelkerke | 4,814.59 mi (7,748.33 km) |
| Castle Rock to Mol | 4,892.00 mi (7,872.92 km) |
| Castle Rock to Mons | 4,884.85 mi (7,861.41 km) |
| Castle Rock to Montignies-le-Tilleul | 4,902.53 mi (7,889.86 km) |
| Castle Rock to Moorslede | 4,835.50 mi (7,781.99 km) |
| Castle Rock to Moortebeek | 4,880.35 mi (7,854.17 km) |
| Castle Rock to Morlanwelz-Mariemont | 4,894.50 mi (7,876.94 km) |
| Castle Rock to Mortsel | 4,871.01 mi (7,839.13 km) |
