| Harpenden to Bad Mergentheim | 470.78 mi (757.65 km) |
| Harpenden to Bad Munder am Deister | 418.06 mi (672.80 km) |
| Harpenden to Bad Munstereifel | 320.28 mi (515.44 km) |
| Harpenden to Bad Nauheim | 407.22 mi (655.36 km) |
| Harpenden to Bad Nenndorf | 414.46 mi (667.01 km) |
| Harpenden to Bad Neuenahr-Ahrweiler | 334.93 mi (539.02 km) |
| Harpenden to Bad Neustadt | 469.88 mi (756.20 km) |
| Harpenden to Bad Oeynhausen | 389.88 mi (627.46 km) |
| Harpenden to Bad Oldesloe | 468.12 mi (753.37 km) |
| Harpenden to Bad Orb | 435.62 mi (701.06 km) |
| Harpenden to Bad Pyrmont | 409.81 mi (659.52 km) |
| Harpenden to Bad Rappenau | 451.53 mi (726.66 km) |
| Harpenden to Bad Reichenhall | 653.29 mi (1,051.37 km) |
| Harpenden to Bad Sackingen | 473.52 mi (762.06 km) |
| Harpenden to Bad Salzdetfurth | 441.30 mi (710.20 km) |
