| Barstow to Rivalta di Torino | 5,919.23 mi (9,526.08 km) |
| Barstow to Rivarolo Canavese | 5,910.66 mi (9,512.29 km) |
| Barstow to Rivoli | 5,917.39 mi (9,523.12 km) |
| Barstow to Rocca di Papa | 6,260.56 mi (10,075.40 km) |
| Barstow to Rocca Priora | 6,261.29 mi (10,076.58 km) |
| Barstow to Roccapiemonte | 6,378.77 mi (10,265.63 km) |
| Barstow to Roccastrada | 6,144.02 mi (9,887.85 km) |
| Barstow to Romano di Lombardia | 5,966.90 mi (9,602.79 km) |
| Barstow to Rome | 6,246.18 mi (10,052.26 km) |
| Barstow to Roncade | 6,043.34 mi (9,725.81 km) |
| Barstow to Ronchi dei Legionari | 6,066.22 mi (9,762.64 km) |
| Barstow to Ronciglione | 6,216.29 mi (10,004.16 km) |
| Barstow to Rosa | 6,019.67 mi (9,687.72 km) |
| Barstow to Rosarno | 6,545.32 mi (10,533.67 km) |
| Barstow to Rosignano Marittimo | 6,100.59 mi (9,817.94 km) |
