| Harrow to Rivalta di Torino | 578.46 mi (930.95 km) |
| Harrow to Rivarolo Canavese | 567.77 mi (913.73 km) |
| Harrow to Rivoli | 576.44 mi (927.70 km) |
| Harrow to Rocca di Papa | 915.75 mi (1,473.75 km) |
| Harrow to Rocca Priora | 916.42 mi (1,474.84 km) |
| Harrow to Roccapiemonte | 1,033.82 mi (1,663.78 km) |
| Harrow to Roccastrada | 799.43 mi (1,286.55 km) |
| Harrow to Romano di Lombardia | 622.64 mi (1,002.04 km) |
| Harrow to Rome | 901.47 mi (1,450.78 km) |
| Harrow to Roncade | 710.75 mi (1,143.84 km) |
| Harrow to Ronchi dei Legionari | 744.10 mi (1,197.51 km) |
| Harrow to Ronciglione | 871.43 mi (1,402.43 km) |
| Harrow to Rosa | 684.18 mi (1,101.08 km) |
| Harrow to Rosarno | 1,200.52 mi (1,932.05 km) |
| Harrow to Rosignano Marittimo | 756.42 mi (1,217.33 km) |
