| Harpenden to Radauti | 1,195.62 mi (1,924.16 km) |
| Harpenden to Ramnicu Sarat | 1,319.78 mi (2,123.98 km) |
| Harpenden to Ramnicu Valcea | 1,216.75 mi (1,958.17 km) |
| Harpenden to Rasnov | 1,245.10 mi (2,003.80 km) |
| Harpenden to Reghin | 1,174.97 mi (1,890.94 km) |
| Harpenden to Resita | 1,106.56 mi (1,780.84 km) |
| Harpenden to Roman | 1,264.68 mi (2,035.30 km) |
| Harpenden to Rosiori de Vede | 1,279.23 mi (2,058.73 km) |
| Harpenden to Rovinari | 1,173.39 mi (1,888.39 km) |
| Harpenden to Roznov | 1,249.71 mi (2,011.21 km) |
| Harpenden to Sabaoani | 1,258.70 mi (2,025.68 km) |
| Harpenden to Sacele | 1,254.69 mi (2,019.23 km) |
| Harpenden to Sacueni | 1,046.80 mi (1,684.65 km) |
| Harpenden to Salcea | 1,220.12 mi (1,963.59 km) |
| Harpenden to Salonta | 1,045.20 mi (1,682.09 km) |
