| Watford to Beausoleil | 655.79 mi (1,055.39 km) |
| Watford to Beauvais | 188.63 mi (303.57 km) |
| Watford to Begles | 473.09 mi (761.37 km) |
| Watford to Belfort | 426.29 mi (686.06 km) |
| Watford to Bellegarde-sur-Valserine | 475.89 mi (765.88 km) |
| Watford to Bellerive-sur-Allier | 419.68 mi (675.40 km) |
| Watford to Bellevue | 228.18 mi (367.23 km) |
| Watford to Belley | 492.46 mi (792.54 km) |
| Watford to Berck-sur-Mer | 122.00 mi (196.34 km) |
| Watford to Bergerac | 471.89 mi (759.44 km) |
| Watford to Bernay | 182.65 mi (293.94 km) |
| Watford to Berre-l'Etang | 621.38 mi (1,000.02 km) |
| Watford to Besancon | 419.35 mi (674.87 km) |
| Watford to Bethune | 152.96 mi (246.16 km) |
| Watford to Betton | 246.26 mi (396.31 km) |
