| Boulder to Bargas | 5,018.41 mi (8,076.35 km) |
| Boulder to Bayona | 4,726.61 mi (7,606.74 km) |
| Boulder to Baza | 5,177.22 mi (8,331.93 km) |
| Boulder to Beasain | 4,960.24 mi (7,982.73 km) |
| Boulder to Bejar | 4,926.63 mi (7,928.65 km) |
| Boulder to Benaguacil | 5,175.19 mi (8,328.66 km) |
| Boulder to Benahavis | 5,121.05 mi (8,241.53 km) |
| Boulder to Benalmadena | 5,140.52 mi (8,272.87 km) |
| Boulder to Benavente | 4,863.25 mi (7,826.64 km) |
| Boulder to Benetuser | 5,190.43 mi (8,353.19 km) |
| Boulder to Beniajan | 5,226.76 mi (8,411.65 km) |
| Boulder to Benicarlo | 5,179.21 mi (8,335.13 km) |
| Boulder to Benicasim | 5,181.11 mi (8,338.19 km) |
| Boulder to Beniel | 5,226.68 mi (8,411.52 km) |
| Boulder to Benifayo | 5,195.36 mi (8,361.12 km) |
