| Groslay to Berga | 476.43 mi (766.75 km) |
| Groslay to Berja | 880.02 mi (1,416.25 km) |
| Groslay to Bermeo | 454.44 mi (731.35 km) |
| Groslay to Berriozar | 466.59 mi (750.90 km) |
| Groslay to Betanzos | 640.04 mi (1,030.04 km) |
| Groslay to Betera | 663.65 mi (1,068.04 km) |
| Groslay to Bilbao | 469.18 mi (755.07 km) |
| Groslay to Binefar | 502.92 mi (809.36 km) |
| Groslay to Binisalem | 643.27 mi (1,035.24 km) |
| Groslay to Blanes | 505.72 mi (813.88 km) |
| Groslay to Boadilla del Monte | 666.33 mi (1,072.35 km) |
| Groslay to Boiro | 695.08 mi (1,118.62 km) |
| Groslay to Bolanos de Calatrava | 759.83 mi (1,222.83 km) |
| Groslay to Bollullos de la Mitacion | 910.17 mi (1,464.78 km) |
| Groslay to Bollullos par del Condado | 919.59 mi (1,479.94 km) |
