| Grays to Bollullos par del Condado | 1,032.92 mi (1,662.32 km) |
| Grays to Bormujos | 1,023.64 mi (1,647.39 km) |
| Grays to Brenes | 1,008.49 mi (1,623.01 km) |
| Grays to Brunete | 792.54 mi (1,275.48 km) |
| Grays to Bueu | 763.93 mi (1,229.42 km) |
| Grays to Bullas | 932.68 mi (1,501.01 km) |
| Grays to Bunol | 834.70 mi (1,343.33 km) |
| Grays to Burela de Cabo | 648.97 mi (1,044.41 km) |
| Grays to Burgos | 658.89 mi (1,060.38 km) |
| Grays to Burjasot | 827.71 mi (1,332.07 km) |
| Grays to Burriana | 800.74 mi (1,288.67 km) |
| Grays to Cabanaquinta | 641.09 mi (1,031.73 km) |
| Grays to Cabanillas del Campo | 767.77 mi (1,235.60 km) |
| Grays to Cabra | 995.42 mi (1,601.97 km) |
| Grays to Caceres | 888.88 mi (1,430.51 km) |
