| Harpenden to Plombieres | 282.42 mi (454.51 km) |
| Harpenden to Pont-a-Celles | 223.12 mi (359.08 km) |
| Harpenden to Poperinge | 148.57 mi (239.10 km) |
| Harpenden to Profondeville | 247.43 mi (398.19 km) |
| Harpenden to Putte | 221.16 mi (355.92 km) |
| Harpenden to Puurs | 205.92 mi (331.40 km) |
| Harpenden to Quaregnon | 206.40 mi (332.17 km) |
| Harpenden to Raeren | 290.42 mi (467.39 km) |
| Harpenden to Ranst | 215.05 mi (346.09 km) |
| Harpenden to Ravels | 231.80 mi (373.04 km) |
| Harpenden to Retie | 235.90 mi (379.64 km) |
| Harpenden to Riemst | 266.34 mi (428.63 km) |
| Harpenden to Rijkevorsel | 222.09 mi (357.42 km) |
| Harpenden to Rixensart | 224.44 mi (361.20 km) |
| Harpenden to Rochefort | 267.62 mi (430.68 km) |
