| Barcelona to Menen | 651.94 mi (1,049.20 km) |
| Barcelona to Merchtem | 669.40 mi (1,077.30 km) |
| Barcelona to Merelbeke | 668.71 mi (1,076.18 km) |
| Barcelona to Merksem | 689.71 mi (1,109.98 km) |
| Barcelona to Merksplas | 701.53 mi (1,129.00 km) |
| Barcelona to Mettet | 628.80 mi (1,011.95 km) |
| Barcelona to Meulebeke | 663.14 mi (1,067.22 km) |
| Barcelona to Middelkerke | 677.95 mi (1,091.06 km) |
| Barcelona to Mol | 691.42 mi (1,112.73 km) |
| Barcelona to Mons | 632.22 mi (1,017.47 km) |
| Barcelona to Montignies-le-Tilleul | 630.81 mi (1,015.19 km) |
| Barcelona to Moorslede | 658.30 mi (1,059.43 km) |
| Barcelona to Moortebeek | 662.53 mi (1,066.23 km) |
| Barcelona to Morlanwelz-Mariemont | 634.19 mi (1,020.62 km) |
| Barcelona to Mortsel | 684.72 mi (1,101.95 km) |
