| Harpenden to Rhosllanerchrugog | 140.50 mi (226.11 km) |
| Harpenden to Rhyl | 167.43 mi (269.46 km) |
| Harpenden to Rhymney | 125.31 mi (201.66 km) |
| Harpenden to Richmond | 25.07 mi (40.35 km) |
| Harpenden to Rickmansworth | 13.30 mi (21.40 km) |
| Harpenden to Ripley | 96.05 mi (154.57 km) |
| Harpenden to Ripon | 167.57 mi (269.68 km) |
| Harpenden to Risca | 118.12 mi (190.10 km) |
| Harpenden to Rochdale | 145.35 mi (233.92 km) |
| Harpenden to Rochester | 47.68 mi (76.73 km) |
| Harpenden to Rock Ferry | 154.81 mi (249.15 km) |
| Harpenden to Rogerstone | 116.72 mi (187.84 km) |
| Harpenden to Romford | 28.22 mi (45.42 km) |
| Harpenden to Romsey | 75.56 mi (121.60 km) |
| Harpenden to Ross on Wye | 95.57 mi (153.80 km) |
