| Watford to Boppard | 361.13 mi (581.18 km) |
| Watford to Borgentreich | 413.61 mi (665.64 km) |
| Watford to Borgholzhausen | 371.96 mi (598.61 km) |
| Watford to Borken | 310.81 mi (500.19 km) |
| Watford to Borna | 556.57 mi (895.71 km) |
| Watford to Bornheim | 326.13 mi (524.86 km) |
| Watford to Bosel | 364.47 mi (586.56 km) |
| Watford to Bottrop | 314.16 mi (505.59 km) |
| Watford to Bovenden | 442.25 mi (711.74 km) |
| Watford to Brackenheim | 452.86 mi (728.80 km) |
| Watford to Brake | 390.80 mi (628.93 km) |
| Watford to Brakel | 410.05 mi (659.92 km) |
| Watford to Bramsche | 359.70 mi (578.88 km) |
| Watford to Brand | 290.74 mi (467.90 km) |
| Watford to Brand-Erbisdorf | 594.69 mi (957.06 km) |
