| Watford to Minervino Murge | 1,067.30 mi (1,717.66 km) |
| Watford to Minturno | 980.75 mi (1,578.37 km) |
| Watford to Mira | 714.60 mi (1,150.04 km) |
| Watford to Mirandola | 703.16 mi (1,131.63 km) |
| Watford to Mirano | 710.55 mi (1,143.52 km) |
| Watford to Misano Adriatico | 804.97 mi (1,295.47 km) |
| Watford to Misilmeri | 1,155.91 mi (1,860.26 km) |
| Watford to Missaglia | 604.29 mi (972.51 km) |
| Watford to Misterbianco | 1,230.99 mi (1,981.09 km) |
| Watford to Modena | 710.49 mi (1,143.43 km) |
| Watford to Modica | 1,262.06 mi (2,031.09 km) |
| Watford to Modugno | 1,092.46 mi (1,758.15 km) |
| Watford to Mogliano Veneto | 712.73 mi (1,147.03 km) |
| Watford to Molfetta | 1,080.08 mi (1,738.22 km) |
| Watford to Molinella | 737.14 mi (1,186.31 km) |
