| Caernarfon to Beausoleil | 839.80 mi (1,351.53 km) |
| Caernarfon to Beauvais | 375.71 mi (604.65 km) |
| Caernarfon to Begles | 599.67 mi (965.08 km) |
| Caernarfon to Belfort | 618.81 mi (995.87 km) |
| Caernarfon to Bellegarde-sur-Valserine | 662.32 mi (1,065.90 km) |
| Caernarfon to Bellerive-sur-Allier | 593.80 mi (955.63 km) |
| Caernarfon to Bellevue | 412.85 mi (664.42 km) |
| Caernarfon to Belley | 677.08 mi (1,089.66 km) |
| Caernarfon to Berck-sur-Mer | 313.60 mi (504.69 km) |
| Caernarfon to Bergerac | 611.58 mi (984.25 km) |
| Caernarfon to Bernay | 350.47 mi (564.02 km) |
| Caernarfon to Berre-l'Etang | 794.76 mi (1,279.04 km) |
| Caernarfon to Besancon | 609.98 mi (981.67 km) |
| Caernarfon to Bethune | 345.57 mi (556.13 km) |
| Caernarfon to Betton | 361.26 mi (581.39 km) |
