| Hertford to Menen | 154.53 mi (248.70 km) |
| Hertford to Merchtem | 194.50 mi (313.02 km) |
| Hertford to Merelbeke | 173.90 mi (279.87 km) |
| Hertford to Merksem | 197.97 mi (318.61 km) |
| Hertford to Merksplas | 214.30 mi (344.88 km) |
| Hertford to Mettet | 229.48 mi (369.32 km) |
| Hertford to Meulebeke | 156.44 mi (251.77 km) |
| Hertford to Middelkerke | 131.58 mi (211.76 km) |
| Hertford to Mol | 227.39 mi (365.94 km) |
| Hertford to Mons | 197.85 mi (318.41 km) |
| Hertford to Montignies-le-Tilleul | 216.77 mi (348.85 km) |
| Hertford to Moorslede | 149.27 mi (240.23 km) |
| Hertford to Moortebeek | 201.43 mi (324.17 km) |
| Hertford to Morlanwelz-Mariemont | 208.77 mi (335.98 km) |
| Hertford to Mortsel | 200.28 mi (322.31 km) |
