| Caerphilly to Bagnolet | 311.47 mi (501.26 km) |
| Caerphilly to Bagnols-sur-Ceze | 627.31 mi (1,009.55 km) |
| Caerphilly to Bailleul | 264.29 mi (425.34 km) |
| Caerphilly to Balma | 592.45 mi (953.45 km) |
| Caerphilly to Bar-le-Duc | 418.31 mi (673.20 km) |
| Caerphilly to Barentin | 230.74 mi (371.34 km) |
| Caerphilly to Basse-Goulaine | 311.54 mi (501.37 km) |
| Caerphilly to Bastia | 852.49 mi (1,371.95 km) |
| Caerphilly to Bayeux | 193.59 mi (311.55 km) |
| Caerphilly to Bayonne | 564.63 mi (908.69 km) |
| Caerphilly to Beaucaire | 648.75 mi (1,044.07 km) |
| Caerphilly to Beauchamp | 297.13 mi (478.19 km) |
| Caerphilly to Beaumont | 494.31 mi (795.51 km) |
| Caerphilly to Beaumont-sur-Oise | 295.14 mi (474.99 km) |
| Caerphilly to Beaune | 479.87 mi (772.28 km) |
