| Watford to Brighton | 58.71 mi (94.48 km) |
| Watford to Brimington | 118.41 mi (190.56 km) |
| Watford to Brislington | 93.59 mi (150.61 km) |
| Watford to Bristol | 95.60 mi (153.86 km) |
| Watford to Brixham | 161.16 mi (259.36 km) |
| Watford to Brixton | 18.14 mi (29.19 km) |
| Watford to Broadstairs | 81.52 mi (131.20 km) |
| Watford to Broadstone | 92.80 mi (149.35 km) |
| Watford to Broadwater | 57.13 mi (91.95 km) |
| Watford to Brockworth | 76.23 mi (122.69 km) |
| Watford to Bromborough | 159.01 mi (255.90 km) |
| Watford to Bromley | 24.79 mi (39.89 km) |
| Watford to Bromsgrove | 84.91 mi (136.65 km) |
| Watford to Broughton Astley | 69.88 mi (112.46 km) |
| Watford to Broughty Ferry | 347.24 mi (558.83 km) |
