| Harrow to Menen | 159.73 mi (257.06 km) |
| Harrow to Merchtem | 202.45 mi (325.81 km) |
| Harrow to Merelbeke | 181.50 mi (292.10 km) |
| Harrow to Merksem | 207.62 mi (334.14 km) |
| Harrow to Merksplas | 224.80 mi (361.78 km) |
| Harrow to Mettet | 234.59 mi (377.53 km) |
| Harrow to Meulebeke | 163.05 mi (262.40 km) |
| Harrow to Middelkerke | 139.25 mi (224.09 km) |
| Harrow to Mol | 237.14 mi (381.64 km) |
| Harrow to Mons | 202.47 mi (325.84 km) |
| Harrow to Montignies-le-Tilleul | 221.76 mi (356.89 km) |
| Harrow to Moorslede | 155.04 mi (249.51 km) |
| Harrow to Moortebeek | 208.87 mi (336.14 km) |
| Harrow to Morlanwelz-Mariemont | 213.87 mi (344.19 km) |
| Harrow to Mortsel | 209.54 mi (337.21 km) |
