| Grays to Benisa | 881.77 mi (1,419.07 km) |
| Grays to Berga | 651.67 mi (1,048.76 km) |
| Grays to Berja | 1,023.51 mi (1,647.18 km) |
| Grays to Bermeo | 574.44 mi (924.47 km) |
| Grays to Berriozar | 604.19 mi (972.35 km) |
| Grays to Betanzos | 692.06 mi (1,113.76 km) |
| Grays to Betera | 821.90 mi (1,322.73 km) |
| Grays to Bilbao | 587.72 mi (945.84 km) |
| Grays to Binefar | 665.02 mi (1,070.25 km) |
| Grays to Binisalem | 823.56 mi (1,325.38 km) |
| Grays to Blanes | 687.10 mi (1,105.78 km) |
| Grays to Boadilla del Monte | 790.63 mi (1,272.39 km) |
| Grays to Boiro | 747.41 mi (1,202.85 km) |
| Grays to Bolanos de Calatrava | 891.70 mi (1,435.05 km) |
| Grays to Bollullos de la Mitacion | 1,026.86 mi (1,652.57 km) |
