| Cities | Distance |
|---|---|
| Grefrath to Beyne-Heusay | 58.10 mi (93.50 km) |
| Grefrath to Bierbeek | 76.65 mi (123.35 km) |
| Grefrath to Bilzen | 48.28 mi (77.70 km) |
| Grefrath to Binche | 114.76 mi (184.69 km) |
| Grefrath to Bissegem | 140.28 mi (225.75 km) |
| Grefrath to Blankenberge | 139.24 mi (224.08 km) |
| Grefrath to Blegny | 53.27 mi (85.74 km) |
| Grefrath to Bocholt | 34.82 mi (56.04 km) |
| Grefrath to Boechout | 81.37 mi (130.95 km) |
| Grefrath to Bonheiden | 81.03 mi (130.40 km) |
| Grefrath to Boom | 87.22 mi (140.36 km) |
| Grefrath to Boortmeerbeek | 80.65 mi (129.79 km) |
| Grefrath to Borgerhout | 82.58 mi (132.90 km) |
| Grefrath to Borgloon | 56.90 mi (91.57 km) |
| Grefrath to Bornem | 92.65 mi (149.11 km) |