| Round Rock to Menen | 5,046.55 mi (8,121.63 km) |
| Round Rock to Merchtem | 5,083.69 mi (8,181.41 km) |
| Round Rock to Merelbeke | 5,064.10 mi (8,149.88 km) |
| Round Rock to Merksem | 5,082.51 mi (8,179.51 km) |
| Round Rock to Merksplas | 5,094.51 mi (8,198.82 km) |
| Round Rock to Mettet | 5,121.48 mi (8,242.22 km) |
| Round Rock to Meulebeke | 5,047.94 mi (8,123.88 km) |
| Round Rock to Middelkerke | 5,022.42 mi (8,082.80 km) |
| Round Rock to Mol | 5,110.10 mi (8,223.91 km) |
| Round Rock to Mons | 5,089.82 mi (8,191.28 km) |
| Round Rock to Montignies-le-Tilleul | 5,108.78 mi (8,221.78 km) |
| Round Rock to Moorslede | 5,041.21 mi (8,113.05 km) |
| Round Rock to Moortebeek | 5,091.42 mi (8,193.85 km) |
| Round Rock to Morlanwelz-Mariemont | 5,100.77 mi (8,208.90 km) |
| Round Rock to Mortsel | 5,085.99 mi (8,185.11 km) |
