| Castelo Branco to Berga | 512.20 mi (824.31 km) |
| Castelo Branco to Berja | 320.93 mi (516.49 km) |
| Castelo Branco to Bermeo | 350.28 mi (563.72 km) |
| Castelo Branco to Berriozar | 367.26 mi (591.04 km) |
| Castelo Branco to Betanzos | 242.04 mi (389.52 km) |
| Castelo Branco to Betera | 374.32 mi (602.40 km) |
| Castelo Branco to Bilbao | 335.33 mi (539.67 km) |
| Castelo Branco to Binefar | 431.09 mi (693.77 km) |
| Castelo Branco to Binisalem | 548.70 mi (883.04 km) |
| Castelo Branco to Blanes | 553.45 mi (890.69 km) |
| Castelo Branco to Boadilla del Monte | 195.83 mi (315.16 km) |
| Castelo Branco to Boiro | 208.83 mi (336.08 km) |
| Castelo Branco to Bolanos de Calatrava | 212.16 mi (341.44 km) |
| Castelo Branco to Bollullos de la Mitacion | 186.79 mi (300.60 km) |
| Castelo Branco to Bollullos par del Condado | 179.14 mi (288.30 km) |
