| Harpenden to Wetter (Ruhr) | 333.64 mi (536.94 km) |
| Harpenden to Wetzlar | 392.68 mi (631.95 km) |
| Harpenden to Weyhe | 396.98 mi (638.88 km) |
| Harpenden to Wickede | 352.77 mi (567.73 km) |
| Harpenden to Wiefelstede | 369.34 mi (594.40 km) |
| Harpenden to Wiehl | 345.10 mi (555.39 km) |
| Harpenden to Wiesbaden | 392.48 mi (631.64 km) |
| Harpenden to Wiesloch | 433.48 mi (697.62 km) |
| Harpenden to Wiesmoor | 356.21 mi (573.26 km) |
| Harpenden to Wietmarschen | 320.85 mi (516.36 km) |
| Harpenden to Wildau | 594.10 mi (956.12 km) |
| Harpenden to Wildberg | 458.36 mi (737.65 km) |
| Harpenden to Wildeshausen | 377.94 mi (608.23 km) |
| Harpenden to Wilhelmshaven | 373.28 mi (600.74 km) |
| Harpenden to Wilkau-Hasslau | 561.54 mi (903.71 km) |
