| Mercer Island to Borsbeek | 4,918.75 mi (7,915.96 km) |
| Mercer Island to Boussu | 4,944.96 mi (7,958.15 km) |
| Mercer Island to Braine-l'Alleud | 4,945.43 mi (7,958.90 km) |
| Mercer Island to Braine-le-Chateau | 4,942.65 mi (7,954.42 km) |
| Mercer Island to Braine-le-Comte | 4,944.02 mi (7,956.64 km) |
| Mercer Island to Brasschaat | 4,913.62 mi (7,907.70 km) |
| Mercer Island to Brecht | 4,913.94 mi (7,908.22 km) |
| Mercer Island to Bredene | 4,879.14 mi (7,852.22 km) |
| Mercer Island to Bree | 4,949.54 mi (7,965.52 km) |
| Mercer Island to Bruges | 4,886.80 mi (7,864.55 km) |
| Mercer Island to Brussels | 4,935.53 mi (7,942.97 km) |
| Mercer Island to Buggenhout | 4,923.04 mi (7,922.87 km) |
| Mercer Island to Chapelle-lez-Herlaimont | 4,955.35 mi (7,974.86 km) |
| Mercer Island to Charleroi | 4,962.90 mi (7,987.01 km) |
| Mercer Island to Chatelet | 4,964.99 mi (7,990.38 km) |
