| Watertown to Borsbeek | 3,589.28 mi (5,776.38 km) |
| Watertown to Boussu | 3,585.30 mi (5,769.99 km) |
| Watertown to Braine-l'Alleud | 3,600.55 mi (5,794.52 km) |
| Watertown to Braine-le-Chateau | 3,596.33 mi (5,787.74 km) |
| Watertown to Braine-le-Comte | 3,593.60 mi (5,783.33 km) |
| Watertown to Brasschaat | 3,586.73 mi (5,772.28 km) |
| Watertown to Brecht | 3,590.63 mi (5,778.55 km) |
| Watertown to Bredene | 3,529.27 mi (5,679.82 km) |
| Watertown to Bree | 3,634.12 mi (5,848.55 km) |
| Watertown to Bruges | 3,539.75 mi (5,696.68 km) |
| Watertown to Brussels | 3,594.78 mi (5,785.23 km) |
| Watertown to Buggenhout | 3,584.19 mi (5,768.19 km) |
| Watertown to Chapelle-lez-Herlaimont | 3,603.55 mi (5,799.36 km) |
| Watertown to Charleroi | 3,611.51 mi (5,812.17 km) |
| Watertown to Chatelet | 3,614.81 mi (5,817.47 km) |
