| Castricum to Bormujos | 1,170.07 mi (1,883.04 km) |
| Castricum to Brenes | 1,154.14 mi (1,857.41 km) |
| Castricum to Brunete | 933.60 mi (1,502.49 km) |
| Castricum to Bueu | 943.03 mi (1,517.67 km) |
| Castricum to Bullas | 1,047.14 mi (1,685.20 km) |
| Castricum to Bunol | 943.62 mi (1,518.62 km) |
| Castricum to Burela de Cabo | 827.39 mi (1,331.55 km) |
| Castricum to Burgos | 805.24 mi (1,295.91 km) |
| Castricum to Burjasot | 932.92 mi (1,501.39 km) |
| Castricum to Burriana | 903.36 mi (1,453.81 km) |
| Castricum to Cabanaquinta | 806.03 mi (1,297.18 km) |
| Castricum to Cabanillas del Campo | 903.21 mi (1,453.57 km) |
| Castricum to Cabra | 1,130.88 mi (1,819.98 km) |
| Castricum to Caceres | 1,043.92 mi (1,680.02 km) |
| Castricum to Cadiz | 1,228.02 mi (1,976.31 km) |
