| Harpenden to Zambrow | 952.26 mi (1,532.51 km) |
| Harpenden to Zamosc | 1,018.82 mi (1,639.63 km) |
| Harpenden to Zary | 661.64 mi (1,064.81 km) |
| Harpenden to Zawiercie | 858.80 mi (1,382.10 km) |
| Harpenden to Zdunska Wola | 824.85 mi (1,327.46 km) |
| Harpenden to Zdzieszowice | 804.92 mi (1,295.39 km) |
| Harpenden to Zgierz | 841.46 mi (1,354.21 km) |
| Harpenden to Zgorzelec | 661.30 mi (1,064.26 km) |
| Harpenden to Ziebice | 755.42 mi (1,215.72 km) |
| Harpenden to Zielona Gora | 674.92 mi (1,086.17 km) |
| Harpenden to Zielonka | 911.07 mi (1,466.23 km) |
| Harpenden to Zlocieniec | 694.11 mi (1,117.06 km) |
| Harpenden to Zlotoryja | 700.27 mi (1,126.97 km) |
| Harpenden to Zlotow | 735.95 mi (1,184.40 km) |
| Harpenden to Znin | 763.47 mi (1,228.69 km) |
