| Mountain Ash to Bagnolet | 321.22 mi (516.96 km) |
| Mountain Ash to Bagnols-sur-Ceze | 637.20 mi (1,025.47 km) |
| Mountain Ash to Bailleul | 272.44 mi (438.44 km) |
| Mountain Ash to Balma | 601.77 mi (968.46 km) |
| Mountain Ash to Bar-le-Duc | 427.56 mi (688.10 km) |
| Mountain Ash to Barentin | 240.53 mi (387.10 km) |
| Mountain Ash to Basse-Goulaine | 320.30 mi (515.47 km) |
| Mountain Ash to Bastia | 862.39 mi (1,387.89 km) |
| Mountain Ash to Bayeux | 203.43 mi (327.39 km) |
| Mountain Ash to Bayonne | 572.80 mi (921.83 km) |
| Mountain Ash to Beaucaire | 658.63 mi (1,059.96 km) |
| Mountain Ash to Beauchamp | 306.88 mi (493.88 km) |
| Mountain Ash to Beaumont | 504.19 mi (811.42 km) |
| Mountain Ash to Beaumont-sur-Oise | 304.82 mi (490.57 km) |
| Mountain Ash to Beaune | 489.72 mi (788.12 km) |
