| Highlands Ranch to Rivalta di Torino | 5,250.83 mi (8,450.40 km) |
| Highlands Ranch to Rivarolo Canavese | 5,243.99 mi (8,439.38 km) |
| Highlands Ranch to Rivoli | 5,249.13 mi (8,447.66 km) |
| Highlands Ranch to Rocca di Papa | 5,595.05 mi (9,004.36 km) |
| Highlands Ranch to Rocca Priora | 5,596.00 mi (9,005.90 km) |
| Highlands Ranch to Roccapiemonte | 5,715.90 mi (9,198.85 km) |
| Highlands Ranch to Roccastrada | 5,478.40 mi (8,816.63 km) |
| Highlands Ranch to Romano di Lombardia | 5,306.81 mi (8,540.48 km) |
| Highlands Ranch to Rome | 5,580.41 mi (8,980.80 km) |
| Highlands Ranch to Roncade | 5,391.75 mi (8,677.18 km) |
| Highlands Ranch to Ronchi dei Legionari | 5,419.11 mi (8,721.21 km) |
| Highlands Ranch to Ronciglione | 5,551.16 mi (8,933.74 km) |
| Highlands Ranch to Rosa | 5,366.53 mi (8,636.59 km) |
| Highlands Ranch to Rosarno | 5,878.57 mi (9,460.64 km) |
| Highlands Ranch to Rosignano Marittimo | 5,434.34 mi (8,745.73 km) |
