| California to Rivalta di Torino | 4,162.38 mi (6,698.70 km) |
| California to Rivarolo Canavese | 4,162.10 mi (6,698.25 km) |
| California to Rivoli | 4,161.27 mi (6,696.91 km) |
| California to Rocca di Papa | 4,498.74 mi (7,240.02 km) |
| California to Rocca Priora | 4,500.39 mi (7,242.68 km) |
| California to Roccapiemonte | 4,622.47 mi (7,439.14 km) |
| California to Roccastrada | 4,387.70 mi (7,061.32 km) |
| California to Romano di Lombardia | 4,244.69 mi (6,831.16 km) |
| California to Rome | 4,483.94 mi (7,216.21 km) |
| California to Roncade | 4,353.81 mi (7,006.78 km) |
| California to Ronchi dei Legionari | 4,394.51 mi (7,072.28 km) |
| California to Ronciglione | 4,458.41 mi (7,175.12 km) |
| California to Rosa | 4,324.84 mi (6,960.15 km) |
| California to Rosarno | 4,764.15 mi (7,667.16 km) |
| California to Rosignano Marittimo | 4,343.78 mi (6,990.63 km) |
