| Oulu to Beyne-Heusay | 1,222.26 mi (1,967.03 km) |
| Oulu to Bierbeek | 1,227.69 mi (1,975.78 km) |
| Oulu to Bilzen | 1,209.83 mi (1,947.03 km) |
| Oulu to Binche | 1,266.67 mi (2,038.50 km) |
| Oulu to Bissegem | 1,262.51 mi (2,031.81 km) |
| Oulu to Blankenberge | 1,236.16 mi (1,989.41 km) |
| Oulu to Blegny | 1,217.49 mi (1,959.36 km) |
| Oulu to Bocholt | 1,190.02 mi (1,915.16 km) |
| Oulu to Boechout | 1,214.78 mi (1,955.01 km) |
| Oulu to Bonheiden | 1,220.69 mi (1,964.51 km) |
| Oulu to Boom | 1,221.31 mi (1,965.50 km) |
| Oulu to Boortmeerbeek | 1,222.97 mi (1,968.17 km) |
| Oulu to Borgerhout | 1,212.02 mi (1,950.56 km) |
| Oulu to Borgloon | 1,217.37 mi (1,959.17 km) |
| Oulu to Bornem | 1,223.21 mi (1,968.57 km) |
