| Harpenden to Wittstock | 547.27 mi (880.75 km) |
| Harpenden to Witzenhausen | 439.25 mi (706.91 km) |
| Harpenden to Wolfenbuttel | 463.49 mi (745.91 km) |
| Harpenden to Wolfersheim | 409.16 mi (658.48 km) |
| Harpenden to Wolfhagen | 410.00 mi (659.82 km) |
| Harpenden to Wolfratshausen | 588.98 mi (947.88 km) |
| Harpenden to Wolfsburg | 473.96 mi (762.76 km) |
| Harpenden to Wolgast | 606.75 mi (976.46 km) |
| Harpenden to Wolmirstedt | 509.60 mi (820.12 km) |
| Harpenden to Wolnzach | 573.19 mi (922.46 km) |
| Harpenden to Worms | 409.80 mi (659.50 km) |
| Harpenden to Worpswede | 401.73 mi (646.53 km) |
| Harpenden to Worth am Rhein | 424.12 mi (682.56 km) |
| Harpenden to Wulfrath | 319.32 mi (513.89 km) |
| Harpenden to Wunsiedel | 552.24 mi (888.74 km) |
