| Opovo to Berga | 950.08 mi (1,529.01 km) |
| Opovo to Berja | 1,338.88 mi (2,154.71 km) |
| Opovo to Bermeo | 1,147.91 mi (1,847.39 km) |
| Opovo to Berriozar | 1,106.60 mi (1,780.90 km) |
| Opovo to Betanzos | 1,417.35 mi (2,281.00 km) |
| Opovo to Betera | 1,128.15 mi (1,815.58 km) |
| Opovo to Bilbao | 1,160.25 mi (1,867.24 km) |
| Opovo to Binefar | 1,030.78 mi (1,658.89 km) |
| Opovo to Binisalem | 969.33 mi (1,559.98 km) |
| Opovo to Blanes | 914.17 mi (1,471.21 km) |
| Opovo to Boadilla del Monte | 1,269.32 mi (2,042.78 km) |
| Opovo to Boiro | 1,462.71 mi (2,354.00 km) |
| Opovo to Bolanos de Calatrava | 1,305.81 mi (2,101.50 km) |
| Opovo to Bollullos de la Mitacion | 1,472.21 mi (2,369.30 km) |
| Opovo to Bollullos par del Condado | 1,491.40 mi (2,400.17 km) |
