| Harpenden to Rheinbach | 326.24 mi (525.04 km) |
| Harpenden to Rheinberg | 298.34 mi (480.13 km) |
| Harpenden to Rheine | 332.21 mi (534.65 km) |
| Harpenden to Rheinfelden (Baden) | 467.51 mi (752.38 km) |
| Harpenden to Ribnitz-Damgarten | 557.59 mi (897.35 km) |
| Harpenden to Richterich | 285.58 mi (459.59 km) |
| Harpenden to Riedlingen | 503.91 mi (810.97 km) |
| Harpenden to Riegelsberg | 364.18 mi (586.09 km) |
| Harpenden to Rielasingen-Worblingen | 497.22 mi (800.20 km) |
| Harpenden to Riesa | 586.33 mi (943.61 km) |
| Harpenden to Rietberg | 375.10 mi (603.66 km) |
| Harpenden to Rinteln | 401.80 mi (646.64 km) |
| Harpenden to Ritterhude | 394.37 mi (634.68 km) |
| Harpenden to Rodenbach | 423.85 mi (682.13 km) |
| Harpenden to Rodental | 506.62 mi (815.32 km) |
