| Grefrath to Bormujos | 1,139.94 mi (1,834.55 km) |
| Grefrath to Brenes | 1,123.59 mi (1,808.25 km) |
| Grefrath to Brunete | 902.59 mi (1,452.58 km) |
| Grefrath to Bueu | 945.16 mi (1,521.09 km) |
| Grefrath to Bullas | 997.36 mi (1,605.10 km) |
| Grefrath to Bunol | 892.13 mi (1,435.75 km) |
| Grefrath to Burela de Cabo | 830.45 mi (1,336.48 km) |
| Grefrath to Burgos | 780.48 mi (1,256.06 km) |
| Grefrath to Burjasot | 879.51 mi (1,415.44 km) |
| Grefrath to Burriana | 849.01 mi (1,366.35 km) |
| Grefrath to Cabanaquinta | 796.20 mi (1,281.36 km) |
| Grefrath to Cabanillas del Campo | 868.82 mi (1,398.24 km) |
| Grefrath to Cabra | 1,093.35 mi (1,759.58 km) |
| Grefrath to Caceres | 1,021.90 mi (1,644.60 km) |
| Grefrath to Cadiz | 1,196.72 mi (1,925.94 km) |
