| Castro Valley to Bagnolet | 5,557.82 mi (8,944.44 km) |
| Castro Valley to Bagnols-sur-Ceze | 5,873.15 mi (9,451.92 km) |
| Castro Valley to Bailleul | 5,470.31 mi (8,803.61 km) |
| Castro Valley to Balma | 5,801.10 mi (9,335.97 km) |
| Castro Valley to Bar-le-Duc | 5,644.11 mi (9,083.32 km) |
| Castro Valley to Barentin | 5,478.94 mi (8,817.50 km) |
| Castro Valley to Basse-Goulaine | 5,520.52 mi (8,884.42 km) |
| Castro Valley to Bastia | 6,101.78 mi (9,819.87 km) |
| Castro Valley to Bayeux | 5,441.55 mi (8,757.33 km) |
| Castro Valley to Bayonne | 5,706.55 mi (9,183.81 km) |
| Castro Valley to Beaucaire | 5,892.82 mi (9,483.57 km) |
| Castro Valley to Beauchamp | 5,543.47 mi (8,921.35 km) |
| Castro Valley to Beaumont | 5,740.76 mi (9,238.87 km) |
| Castro Valley to Beaumont-sur-Oise | 5,539.71 mi (8,915.31 km) |
| Castro Valley to Beaune | 5,727.48 mi (9,217.48 km) |
