| Grefrath to Zottegem | 114.91 mi (184.92 km) |
| Grefrath to Zulte | 129.36 mi (208.18 km) |
| Grefrath to Zwevegem | 135.72 mi (218.43 km) |
| Grefrath to Zwijndrecht | 87.16 mi (140.27 km) |
| Grefrath to Asenovgrad | 1,083.94 mi (1,744.44 km) |
| Grefrath to Aytos | 1,145.51 mi (1,843.53 km) |
| Grefrath to Balchik | 1,151.72 mi (1,853.51 km) |
| Grefrath to Bankya | 986.96 mi (1,588.36 km) |
| Grefrath to Bansko | 1,041.36 mi (1,675.91 km) |
| Grefrath to Berkovitsa | 961.58 mi (1,547.52 km) |
| Grefrath to Blagoevgrad | 1,018.37 mi (1,638.91 km) |
| Grefrath to Botevgrad | 1,002.10 mi (1,612.72 km) |
| Grefrath to Burgas | 1,162.77 mi (1,871.30 km) |
| Grefrath to Byala Slatina | 982.25 mi (1,580.78 km) |
| Grefrath to Chirpan | 1,092.79 mi (1,758.68 km) |
