| Watford to Montigny-les-Metz | 338.09 mi (544.11 km) |
| Watford to Montivilliers | 147.94 mi (238.09 km) |
| Watford to Montlouis-sur-Loire | 299.85 mi (482.56 km) |
| Watford to Montlucon | 391.45 mi (629.97 km) |
| Watford to Montmagny | 221.22 mi (356.02 km) |
| Watford to Montmorency | 219.67 mi (353.53 km) |
| Watford to Montpellier | 590.00 mi (949.51 km) |
| Watford to Montreuil | 230.17 mi (370.42 km) |
| Watford to Montrouge | 229.89 mi (369.98 km) |
| Watford to Morangis | 236.81 mi (381.12 km) |
| Watford to Morieres-les-Avignon | 586.59 mi (944.03 km) |
| Watford to Morlaix | 261.35 mi (420.60 km) |
| Watford to Morsang-sur-Orge | 239.75 mi (385.84 km) |
| Watford to Mouans-Sartoux | 651.83 mi (1,049.02 km) |
| Watford to Mougins | 653.59 mi (1,051.86 km) |
