| Os to Bagnolet | 794.03 mi (1,277.88 km) |
| Os to Bagnols-sur-Ceze | 1,110.51 mi (1,787.19 km) |
| Os to Bailleul | 664.24 mi (1,068.99 km) |
| Os to Balma | 1,160.02 mi (1,866.88 km) |
| Os to Bar-le-Duc | 791.57 mi (1,273.91 km) |
| Os to Barentin | 759.21 mi (1,221.83 km) |
| Os to Basse-Goulaine | 941.50 mi (1,515.19 km) |
| Os to Bastia | 1,222.42 mi (1,967.30 km) |
| Os to Bayeux | 794.74 mi (1,279.00 km) |
| Os to Bayonne | 1,192.32 mi (1,918.85 km) |
| Os to Beaucaire | 1,135.02 mi (1,826.64 km) |
| Os to Beauchamp | 785.57 mi (1,264.25 km) |
| Os to Beaumont | 1,004.91 mi (1,617.25 km) |
| Os to Beaumont-sur-Oise | 776.15 mi (1,249.09 km) |
| Os to Beaune | 912.52 mi (1,468.57 km) |
