| Olney to Borsbeek | 3,849.25 mi (6,194.77 km) |
| Olney to Boussu | 3,841.11 mi (6,181.66 km) |
| Olney to Braine-l'Alleud | 3,858.14 mi (6,209.08 km) |
| Olney to Braine-le-Chateau | 3,853.81 mi (6,202.11 km) |
| Olney to Braine-le-Comte | 3,850.55 mi (6,196.86 km) |
| Olney to Brasschaat | 3,847.11 mi (6,191.32 km) |
| Olney to Brecht | 3,851.42 mi (6,198.26 km) |
| Olney to Bredene | 3,787.62 mi (6,095.59 km) |
| Olney to Bree | 3,895.13 mi (6,268.60 km) |
| Olney to Bruges | 3,798.28 mi (6,112.74 km) |
| Olney to Brussels | 3,853.07 mi (6,200.91 km) |
| Olney to Buggenhout | 3,842.96 mi (6,184.65 km) |
| Olney to Chapelle-lez-Herlaimont | 3,860.11 mi (6,212.25 km) |
| Olney to Charleroi | 3,867.96 mi (6,224.89 km) |
| Olney to Chatelet | 3,871.36 mi (6,230.36 km) |
