| Cities | Distance |
|---|---|
| Watford to Mexborough | 132.75 mi (213.65 km) |
| Watford to Mickleover | 99.00 mi (159.32 km) |
| Watford to Middlesbrough | 204.85 mi (329.67 km) |
| Watford to Middleton | 151.26 mi (243.43 km) |
| Watford to Middlewich | 136.80 mi (220.17 km) |
| Watford to Midsomer Norton | 93.36 mi (150.25 km) |
| Watford to Mildenhall | 61.24 mi (98.56 km) |
| Watford to Milford Haven | 199.07 mi (320.38 km) |
| Watford to Mill Hill | 7.51 mi (12.08 km) |
| Watford to Milngavie | 336.48 mi (541.51 km) |
| Watford to Milnrow | 153.03 mi (246.28 km) |
| Watford to Milton | 121.32 mi (195.25 km) |
| Watford to Milton Keynes | 30.81 mi (49.59 km) |
| Watford to Minehead | 136.20 mi (219.20 km) |
| Watford to Minster | 54.24 mi (87.29 km) |