| Boise to Borsbeek | 4,988.56 mi (8,028.32 km) |
| Boise to Boussu | 5,008.90 mi (8,061.05 km) |
| Boise to Braine-l'Alleud | 5,012.55 mi (8,066.91 km) |
| Boise to Braine-le-Chateau | 5,009.40 mi (8,061.85 km) |
| Boise to Braine-le-Comte | 5,009.92 mi (8,062.69 km) |
| Boise to Brasschaat | 4,983.87 mi (8,020.76 km) |
| Boise to Brecht | 4,984.95 mi (8,022.51 km) |
| Boise to Bredene | 4,943.74 mi (7,956.19 km) |
| Boise to Bree | 5,023.01 mi (8,083.75 km) |
| Boise to Bruges | 4,952.18 mi (7,969.76 km) |
| Boise to Brussels | 5,003.31 mi (8,052.05 km) |
| Boise to Buggenhout | 4,990.96 mi (8,032.17 km) |
| Boise to Chapelle-lez-Herlaimont | 5,021.20 mi (8,080.84 km) |
| Boise to Charleroi | 5,029.00 mi (8,093.39 km) |
| Boise to Chatelet | 5,031.39 mi (8,097.25 km) |
