| Cities | Distance |
|---|---|
| Watford to Adel | 159.53 mi (256.73 km) |
| Watford to Adwick le Street | 136.32 mi (219.39 km) |
| Watford to Ainsdale | 174.34 mi (280.57 km) |
| Watford to Airdrie | 325.24 mi (523.42 km) |
| Watford to Aldenham | 2.13 mi (3.43 km) |
| Watford to Aldershot | 32.21 mi (51.84 km) |
| Watford to Aldridge | 92.11 mi (148.24 km) |
| Watford to Alfreton | 107.93 mi (173.70 km) |
| Watford to Allestree | 100.74 mi (162.13 km) |
| Watford to Alloa | 337.75 mi (543.56 km) |
| Watford to Almondbury | 148.06 mi (238.27 km) |
| Watford to Alsager | 128.05 mi (206.07 km) |
| Watford to Alton | 42.97 mi (69.15 km) |
| Watford to Altrincham | 145.08 mi (233.48 km) |
| Watford to Amblecote | 93.33 mi (150.20 km) |