| Caernarfon to Brie-Comte-Robert | 428.90 mi (690.25 km) |
| Caernarfon to Brignais | 655.23 mi (1,054.49 km) |
| Caernarfon to Brignoles | 821.68 mi (1,322.37 km) |
| Caernarfon to Brive-la-Gaillarde | 610.16 mi (981.96 km) |
| Caernarfon to Bron | 655.97 mi (1,055.68 km) |
| Caernarfon to Bruay-sur-l'Escaut | 383.60 mi (617.34 km) |
| Caernarfon to Bruges | 593.90 mi (955.80 km) |
| Caernarfon to Brumath | 602.86 mi (970.21 km) |
| Caernarfon to Brunoy | 425.40 mi (684.62 km) |
| Caernarfon to Bruz | 370.31 mi (595.96 km) |
| Caernarfon to Bry-sur-Marne | 418.56 mi (673.61 km) |
| Caernarfon to Bully-les-Mines | 352.05 mi (566.57 km) |
| Caernarfon to Bures-sur-Yvette | 415.28 mi (668.34 km) |
| Caernarfon to Bussy-Saint-Georges | 423.92 mi (682.24 km) |
| Caernarfon to Buxerolles | 496.39 mi (798.87 km) |
