| Kalkar to Zottegem | 123.38 mi (198.56 km) |
| Kalkar to Zulte | 135.87 mi (218.67 km) |
| Kalkar to Zwevegem | 143.42 mi (230.81 km) |
| Kalkar to Zwijndrecht | 91.70 mi (147.58 km) |
| Kalkar to Asenovgrad | 1,099.56 mi (1,769.56 km) |
| Kalkar to Aytos | 1,158.63 mi (1,864.63 km) |
| Kalkar to Balchik | 1,163.34 mi (1,872.21 km) |
| Kalkar to Bankya | 1,003.17 mi (1,614.44 km) |
| Kalkar to Bansko | 1,058.22 mi (1,703.05 km) |
| Kalkar to Berkovitsa | 977.16 mi (1,572.59 km) |
| Kalkar to Blagoevgrad | 1,035.37 mi (1,666.27 km) |
| Kalkar to Botevgrad | 1,017.53 mi (1,637.56 km) |
| Kalkar to Burgas | 1,175.95 mi (1,892.52 km) |
| Kalkar to Byala Slatina | 996.88 mi (1,604.33 km) |
| Kalkar to Chirpan | 1,107.86 mi (1,782.93 km) |
