| Watford to Mombris | 430.88 mi (693.43 km) |
| Watford to Monchengladbach | 295.76 mi (475.98 km) |
| Watford to Monschau | 298.21 mi (479.92 km) |
| Watford to Montabaur | 366.69 mi (590.12 km) |
| Watford to Moosburg | 588.65 mi (947.33 km) |
| Watford to Morbach | 352.00 mi (566.50 km) |
| Watford to Morfelden-Walldorf | 407.91 mi (656.47 km) |
| Watford to Morlenbach | 424.40 mi (683.00 km) |
| Watford to Morsbach | 354.77 mi (570.94 km) |
| Watford to Mosbach | 448.10 mi (721.15 km) |
| Watford to Mosigkau | 539.74 mi (868.63 km) |
| Watford to Mossingen | 475.33 mi (764.97 km) |
| Watford to Much | 340.55 mi (548.06 km) |
| Watford to Mucheln | 524.78 mi (844.55 km) |
| Watford to Muhlacker | 447.95 mi (720.91 km) |
