| Harpenden to Racale | 1,201.07 mi (1,932.93 km) |
| Harpenden to Racconigi | 610.60 mi (982.67 km) |
| Harpenden to Raffadali | 1,203.07 mi (1,936.16 km) |
| Harpenden to Ragusa | 1,264.91 mi (2,035.68 km) |
| Harpenden to Ramacca | 1,236.94 mi (1,990.66 km) |
| Harpenden to Randazzo | 1,214.94 mi (1,955.25 km) |
| Harpenden to Rapallo | 678.53 mi (1,092.00 km) |
| Harpenden to Ravanusa | 1,223.22 mi (1,968.59 km) |
| Harpenden to Ravenna | 770.66 mi (1,240.25 km) |
| Harpenden to Recanati | 867.78 mi (1,396.56 km) |
| Harpenden to Recco | 675.13 mi (1,086.52 km) |
| Harpenden to Reggello | 785.98 mi (1,264.92 km) |
| Harpenden to Reggio di Calabria | 1,222.58 mi (1,967.56 km) |
| Harpenden to Reggio Emilia | 703.71 mi (1,132.51 km) |
| Harpenden to Reggiolo | 698.71 mi (1,124.47 km) |
