| Harpenden to Pyrzyce | 646.34 mi (1,040.19 km) |
| Harpenden to Pyskowice | 826.58 mi (1,330.25 km) |
| Harpenden to Raciborz | 815.54 mi (1,312.48 km) |
| Harpenden to Radom | 919.98 mi (1,480.57 km) |
| Harpenden to Radomsko | 851.76 mi (1,370.77 km) |
| Harpenden to Radzionkow Nowy | 837.97 mi (1,348.58 km) |
| Harpenden to Radzymin | 911.24 mi (1,466.50 km) |
| Harpenden to Radzyn Podlaski | 977.66 mi (1,573.39 km) |
| Harpenden to Rawa Mazowiecka | 877.67 mi (1,412.47 km) |
| Harpenden to Rawicz | 735.18 mi (1,183.16 km) |
| Harpenden to Reda | 794.94 mi (1,279.34 km) |
| Harpenden to Rogozno | 734.46 mi (1,182.00 km) |
| Harpenden to Ropczyce | 960.65 mi (1,546.02 km) |
| Harpenden to Ruda Slaska | 838.78 mi (1,349.89 km) |
| Harpenden to Rumia | 796.56 mi (1,281.93 km) |
