| Niederkassel to Zottegem | 141.10 mi (227.08 km) |
| Niederkassel to Zulte | 157.12 mi (252.86 km) |
| Niederkassel to Zwevegem | 161.53 mi (259.96 km) |
| Niederkassel to Zwijndrecht | 120.56 mi (194.02 km) |
| Niederkassel to Asenovgrad | 1,040.24 mi (1,674.10 km) |
| Niederkassel to Aytos | 1,103.84 mi (1,776.46 km) |
| Niederkassel to Balchik | 1,111.42 mi (1,788.66 km) |
| Niederkassel to Bankya | 942.85 mi (1,517.38 km) |
| Niederkassel to Bansko | 996.78 mi (1,604.17 km) |
| Niederkassel to Berkovitsa | 917.94 mi (1,477.28 km) |
| Niederkassel to Blagoevgrad | 973.71 mi (1,567.04 km) |
| Niederkassel to Botevgrad | 958.56 mi (1,542.65 km) |
| Niederkassel to Burgas | 1,121.02 mi (1,804.11 km) |
| Niederkassel to Byala Slatina | 939.35 mi (1,511.73 km) |
| Niederkassel to Chirpan | 1,049.50 mi (1,689.01 km) |
