| Boulogne-sur-Mer to Bayona | 774.50 mi (1,246.44 km) |
| Boulogne-sur-Mer to Baza | 940.04 mi (1,512.85 km) |
| Boulogne-sur-Mer to Beasain | 560.06 mi (901.33 km) |
| Boulogne-sur-Mer to Bejar | 797.95 mi (1,284.18 km) |
| Boulogne-sur-Mer to Benaguacil | 776.57 mi (1,249.76 km) |
| Boulogne-sur-Mer to Benahavis | 1,035.56 mi (1,666.58 km) |
| Boulogne-sur-Mer to Benalmadena | 1,022.13 mi (1,644.96 km) |
| Boulogne-sur-Mer to Benavente | 694.95 mi (1,118.42 km) |
| Boulogne-sur-Mer to Benetuser | 786.91 mi (1,266.41 km) |
| Boulogne-sur-Mer to Beniajan | 890.21 mi (1,432.66 km) |
| Boulogne-sur-Mer to Benicarlo | 714.66 mi (1,150.13 km) |
| Boulogne-sur-Mer to Benicasim | 741.08 mi (1,192.66 km) |
| Boulogne-sur-Mer to Beniel | 885.42 mi (1,424.95 km) |
| Boulogne-sur-Mer to Benifayo | 796.74 mi (1,282.22 km) |
| Boulogne-sur-Mer to Benisa | 833.43 mi (1,341.27 km) |
