| Rancho San Diego to Rivalta di Torino | 6,033.00 mi (9,709.18 km) |
| Rancho San Diego to Rivarolo Canavese | 6,024.92 mi (9,696.17 km) |
| Rancho San Diego to Rivoli | 6,031.20 mi (9,706.29 km) |
| Rancho San Diego to Rocca di Papa | 6,375.38 mi (10,260.18 km) |
| Rancho San Diego to Rocca Priora | 6,376.17 mi (10,261.46 km) |
| Rancho San Diego to Roccapiemonte | 6,494.39 mi (10,451.71 km) |
| Rancho San Diego to Roccastrada | 6,258.73 mi (10,072.45 km) |
| Rancho San Diego to Romano di Lombardia | 6,082.99 mi (9,789.62 km) |
| Rancho San Diego to Rome | 6,360.92 mi (10,236.91 km) |
| Rancho San Diego to Roncade | 6,161.63 mi (9,916.18 km) |
| Rancho San Diego to Ronchi dei Legionari | 6,185.59 mi (9,954.75 km) |
| Rancho San Diego to Ronciglione | 6,331.19 mi (10,189.06 km) |
| Rancho San Diego to Rosa | 6,137.56 mi (9,877.46 km) |
| Rancho San Diego to Rosarno | 6,659.97 mi (10,718.19 km) |
| Rancho San Diego to Rosignano Marittimo | 6,215.09 mi (10,002.22 km) |
