| Cities | Distance |
|---|---|
| Watford to Bonhill | 343.91 mi (553.46 km) |
| Watford to Bonnyrigg | 311.76 mi (501.72 km) |
| Watford to Bootle | 164.84 mi (265.29 km) |
| Watford to Borehamwood | 5.29 mi (8.52 km) |
| Watford to Boscombe | 89.67 mi (144.30 km) |
| Watford to Boston | 92.49 mi (148.86 km) |
| Watford to Bottesford | 131.59 mi (211.77 km) |
| Watford to Bourne | 76.93 mi (123.81 km) |
| Watford to Bournemouth | 91.13 mi (146.66 km) |
| Watford to Bournville | 84.55 mi (136.06 km) |
| Watford to Bovingdon | 7.66 mi (12.32 km) |
| Watford to Bowdon | 144.91 mi (233.21 km) |
| Watford to Boxley | 47.17 mi (75.91 km) |
| Watford to Brackley | 41.32 mi (66.49 km) |
| Watford to Bracknell | 22.43 mi (36.10 km) |