| Harpenden to Rivalta di Torino | 590.81 mi (950.82 km) |
| Harpenden to Rivarolo Canavese | 579.74 mi (933.01 km) |
| Harpenden to Rivoli | 588.76 mi (947.52 km) |
| Harpenden to Rocca di Papa | 926.96 mi (1,491.80 km) |
| Harpenden to Rocca Priora | 927.60 mi (1,492.83 km) |
| Harpenden to Roccapiemonte | 1,044.57 mi (1,681.07 km) |
| Harpenden to Roccastrada | 810.78 mi (1,304.82 km) |
| Harpenden to Romano di Lombardia | 632.99 mi (1,018.70 km) |
| Harpenden to Rome | 912.74 mi (1,468.91 km) |
| Harpenden to Roncade | 719.28 mi (1,157.56 km) |
| Harpenden to Ronchi dei Legionari | 751.75 mi (1,209.83 km) |
| Harpenden to Ronciglione | 882.62 mi (1,420.44 km) |
| Harpenden to Rosa | 692.99 mi (1,115.26 km) |
| Harpenden to Rosarno | 1,211.69 mi (1,950.03 km) |
| Harpenden to Rosignano Marittimo | 767.94 mi (1,235.87 km) |
