| Caernarfon to Beuvry | 347.38 mi (559.06 km) |
| Caernarfon to Beziers | 758.32 mi (1,220.39 km) |
| Caernarfon to Bezons | 404.95 mi (651.71 km) |
| Caernarfon to Biarritz | 678.83 mi (1,092.47 km) |
| Caernarfon to Biganos | 605.58 mi (974.59 km) |
| Caernarfon to Billere | 702.43 mi (1,130.45 km) |
| Caernarfon to Biot | 836.88 mi (1,346.83 km) |
| Caernarfon to Biscarrosse | 620.53 mi (998.65 km) |
| Caernarfon to Bischheim | 609.18 mi (980.38 km) |
| Caernarfon to Bischwiller | 607.08 mi (977.00 km) |
| Caernarfon to Blagnac | 705.59 mi (1,135.53 km) |
| Caernarfon to Blain | 406.60 mi (654.36 km) |
| Caernarfon to Blanquefort | 591.73 mi (952.30 km) |
| Caernarfon to Blois | 455.44 mi (732.96 km) |
| Caernarfon to Bobigny | 412.49 mi (663.83 km) |
