| Rancho Cucamonga to Rivalta di Torino | 5,978.11 mi (9,620.84 km) |
| Rancho Cucamonga to Rivarolo Canavese | 5,969.57 mi (9,607.10 km) |
| Rancho Cucamonga to Rivoli | 5,976.27 mi (9,617.88 km) |
| Rancho Cucamonga to Rocca di Papa | 6,319.51 mi (10,170.27 km) |
| Rancho Cucamonga to Rocca Priora | 6,320.25 mi (10,171.45 km) |
| Rancho Cucamonga to Roccapiemonte | 6,437.76 mi (10,360.57 km) |
| Rancho Cucamonga to Roccastrada | 6,202.96 mi (9,982.70 km) |
| Rancho Cucamonga to Romano di Lombardia | 6,025.91 mi (9,697.76 km) |
| Rancho Cucamonga to Rome | 6,305.13 mi (10,147.12 km) |
| Rancho Cucamonga to Roncade | 6,102.44 mi (9,820.92 km) |
| Rancho Cucamonga to Ronchi dei Legionari | 6,125.35 mi (9,857.80 km) |
| Rancho Cucamonga to Ronciglione | 6,275.24 mi (10,099.03 km) |
| Rancho Cucamonga to Rosa | 6,078.75 mi (9,782.81 km) |
| Rancho Cucamonga to Rosarno | 6,604.26 mi (10,628.53 km) |
| Rancho Cucamonga to Rosignano Marittimo | 6,159.51 mi (9,912.78 km) |
